HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Ontario (ONT) to Keflavik Intl (KEF) from $561

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — KEF
Jun 14 — Jun 211
From?
To?
Fri 6/14
Fri 6/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

How far in advance should I book a flight from Ontario to Reykjavik Keflavik Intl Airport?

Find a great deal and save up to 25% by booking at least 19 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Reykjavik Keflavik Intl Airport within the next two weeks, with the cheapest ticket starting at $848.

What is the cheapest month to fly from Ontario to Reykjavik Keflavik Intl Airport?

Flights from Ontario to Reykjavik Keflavik Intl Airport lean towards being more expensive in December. Prices are generally better when you fly from Ontario to Reykjavik Keflavik Intl Airport in April, with the cheapest ticket starting at $564.

What is the cheapest time of day to fly from ONT to KEF?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Reykjavik Keflavik Intl Airport as you normally would.

Cheap Ontario to Keflavik Intl flights in June & July 2024

Find cheap flight options from Ontario to Keflavik Intl specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 9, 2024.
Scroll through some of the best deals on flights from Ontario to Reykjavik in 2024. Check back regularly for other flight deals.
Tue 7/161:47 pmONT - KEF
2 stops35h 48mAir Canada
Wed 7/2410:00 amKEF - ONT
2 stops33h 15mAir Canada
Deal found 6/9$648
Tue 7/165:10 amONT - KEF
3 stops20h 25mMultiple Airlines
Wed 7/2410:00 amKEF - ONT
2 stops33h 15mMultiple Airlines
Deal found 6/9$678
Thu 6/136:25 pmONT - KEF
2 stops31h 10mAir Canada
Wed 6/1910:00 amKEF - ONT
2 stops38h 28mAir Canada
Deal found 6/9$704
Sun 6/235:50 amONT - KEF
2 stops19h 45mMultiple Airlines
Sun 6/3010:00 amKEF - ONT
2 stops17h 48mMultiple Airlines
Deal found 6/9$952
Sun 6/235:50 amONT - KEF
2 stops19h 45mMultiple Airlines
Sun 6/309:45 amKEF - ONT
3 stops18h 03mMultiple Airlines
Deal found 6/9$1,152
Thu 6/136:25 pmONT - KEF
2 stops31h 10mMultiple Airlines
Wed 6/1910:00 amKEF - ONT
3 stops17h 48mMultiple Airlines
Deal found 6/9$1,250
Sat 6/295:20 amONT - KEF
2 stops20h 15mUnited Airlines
Sat 7/1312:00 pmKEF - ONT
2 stops17h 45mUnited Airlines
Deal found 6/9$1,253
Thu 6/139:40 pmONT - KEF
2 stops25h 35mMultiple Airlines
Wed 6/194:55 pmKEF - ONT
1 stop25h 04mMultiple Airlines
Deal found 6/9$1,495
Thu 6/1311:36 amONT - KEF
1 stop14h 39mMultiple Airlines
Wed 6/194:55 pmKEF - ONT
1 stop25h 04mMultiple Airlines
Deal found 6/9$1,550

Ontario to Keflavik Intl 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Keflavik Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.
Scroll through some of the best deals on flights from Ontario to Reykjavik in 2024. Check back regularly for other flight deals.
Mon 8/195:15 amONT - KEF
2 stops20h 20mAir Canada
Fri 8/3010:00 amKEF - ONT
2 stops33h 32mAir Canada
Deal found 6/9$561
Tue 7/161:47 pmONT - KEF
2 stops35h 48mAir Canada
Wed 7/2410:00 amKEF - ONT
2 stops33h 15mAir Canada
Deal found 6/9$648
Mon 8/196:00 amONT - KEF
2 stops19h 35mMultiple Airlines
Fri 8/3010:00 amKEF - ONT
3 stops18h 02mMultiple Airlines
Deal found 6/9$653
Tue 7/165:10 amONT - KEF
3 stops20h 25mMultiple Airlines
Wed 7/2410:00 amKEF - ONT
2 stops33h 15mMultiple Airlines
Deal found 6/9$678
Thu 9/265:15 amONT - KEF
2 stops42h 45mMultiple Airlines
Thu 10/39:45 amKEF - ONT
2 stops55h 18mMultiple Airlines
Deal found 6/9$690
Thu 6/136:25 pmONT - KEF
2 stops31h 10mAir Canada
Wed 6/1910:00 amKEF - ONT
2 stops38h 28mAir Canada
Deal found 6/9$704
Sat 9/710:49 amONT - KEF
2 stops14h 41mUnited Airlines
Sat 9/1411:00 amKEF - ONT
2 stops17h 02mUnited Airlines
Deal found 6/9$766
Thu 9/262:36 pmONT - KEF
3 stops35h 44mAmerican Airlines
Thu 10/310:35 amKEF - ONT
3 stops29h 14mAmerican Airlines
Deal found 6/9$795
Tue 9/32:39 pmONT - KEF
2 stops60h 06mAmerican Airlines
Tue 9/1010:10 amKEF - ONT
2 stops40h 52mAmerican Airlines
Deal found 6/9$914

Ontario to Keflavik Intl flights leaving soon

Find last-minute flight options from Ontario to Keflavik Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.
Have a look at some of the flights available from Ontario to Reykjavik departing last-minute. It's wise to confirm all flight details are correct before booking.
Sun 6/168:10 amONT - KEF
2 stops18h 50mBritish Airways
Sat 6/2210:10 amKEF - ONT
2 stops19h 30mBritish Airways
Deal found 6/9$2,370
Mon 6/172:44 pmONT - KEF
2 stops36h 21mBritish Airways
Sat 6/2910:10 amKEF - ONT
2 stops20h 49mBritish Airways
Deal found 6/8$2,496
Sun 6/168:10 amONT - KEF
2 stops18h 50mBritish Airways
Thu 6/2710:35 amKEF - ONT
2 stops20h 24mBritish Airways
Deal found 6/9$14,043

One-way flights to Keflavik Intl from Ontario

Search for one-way flight options from Ontario to Keflavik Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.
Take a look at some of the best available options we've come across on one-way flights from Ontario to Reykjavik. Those needing a return flight from Ontario to Reykjavik can use the search form above.
Tue 8/276:00 amONT - KEF
2 stops18h 00mUnited Airlines
Deal found 6/8$573
Wed 8/141:45 pmONT - KEF
3 stops34h 15mUnited Airlines
Deal found 6/9$625
Sat 8/105:10 amONT - KEF
2 stops20h 25mAir Canada
Deal found 6/8$655
Sat 8/1011:47 pmONT - KEF
1 stop15h 48mJetBlue
Deal found 6/8$719
Wed 8/1411:47 pmONT - KEF
1 stop15h 48mJetBlue
Deal found 6/9$738
Tue 8/271:35 pmONT - KEF
2 stops26h 55mMultiple Airlines
Deal found 6/8$1,682
Tue 6/254:24 pmONT - KEF
1 stop14h 01mAlaska Airlines
Deal found 6/9$1,792
Tue 6/2511:20 amONT - KEF
2 stops14h 55mAlaska Airlines
Deal found 6/9$2,028
Thu 6/2711:59 pmONT - KEF
2 stops41h 21mMultiple Airlines
Deal found 6/7$2,078

Find flights from Ontario to Keflavik Intl within your budget

Customize your flight search to find flights from Ontario to Keflavik Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 9, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$643 - $1,326

Route

Depart

Return

Price

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Mon 9/23

2 stops19h 35m

Reykjavik Keflavik Intl

Mon 9/30

2 stops19h 56m

$643

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Thu 9/26

2 stops42h 45m

Reykjavik Keflavik Intl

Thu 10/3

2 stops55h 18m

$690

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Mon 9/23

2 stops30h 50m

Reykjavik Keflavik Intl

Mon 9/30

2 stops38h 17m

$692

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Mon 9/23

2 stops41h 55m

Reykjavik Keflavik Intl

Mon 9/30

2 stops33h 32m

$697

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Tue 7/16

2 stops19h 10m

Reykjavik Keflavik Intl

Tue 7/23

2 stops17h 45m

$749

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Wed 9/25

2 stops42h 35m

Reykjavik Keflavik Intl

Sat 10/5

2 stops39h 20m

$782

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Sun 7/28

2 stops19h 30m

Reykjavik Keflavik Intl

Tue 8/13

2 stops19h 19m

$814

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Wed 10/9

2 stops34h 00m

Reykjavik Keflavik Intl

Wed 10/16

2 stops41h 37m

$912

OntarioReykjavik Keflavik Intl

ONT - KEF

ONTKEF

Ontario

Mon 8/19

1 stop15h 48m

Reykjavik Keflavik Intl

Tue 8/27

1 stop19h 52m

$1,326

Flights are sorted by cheapest first

Deals found on 6/8

What is the cheapest day to fly from Ontario to Reykjavik Keflavik Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Keflavik Intl. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Reykjavik Keflavik Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated June 9, 2024.
Get a feel of what it's like to fly with JetBlue, Air Canada and United Airlines from Ontario to Reykjavik by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,254 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,254 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

JetBlue
7.6
Good
4,279 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Virgin Atlantic
7.6
Good
714 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
10,661 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,172 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Reykjavik Keflavik Intl?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Reykjavik Keflavik Intl. 0 airlines have flights from Ontario to Reykjavik Keflavik Intl on a regular basis. Booking flights from Ontario to Reykjavik Keflavik Intl should not be difficult; the airport handles an average of 0 outbound flights to Reykjavik Keflavik Intl per day.

  • Can I find flights from Ontario to Reykjavik Keflavik Intl Airport for under $700 on Cheapflights?

    Yes, there are multiple flights from Ontario to Reykjavik Keflavik Intl Airport for under $700. The cheapest flight booked recently is on Multiple Airlines for just $643, but on average you can expect to pay $807.

  • Are there last-minute flights available from Ontario to Reykjavik Keflavik Intl Airport for under $2,400?

    There are currently 3+ open flights from Ontario to Reykjavik Keflavik Intl Airport within the next 7 days for less than $2,400.

  • What are the cheapest airlines to fly from Ontario to Reykjavik Keflavik Intl Airport one-way?

    One-way options have recently been found by users for as low as $573 on United Airlines. Other airlines that offer cheap prices include Air Canada from $655 and JetBlue from $719 one-way.

  • What does ONT to KEF mean?

    Great question - ONT to KEF just means Ontario Airport to Reykjavik Keflavik Intl Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Ontario to Keflavik Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Keflavik Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Keflavik Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Keflavik Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Keflavik Intl.

  • Can I find deals for business class flights from Ontario to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Ontario to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Keflavik Intl that allow pets onboard?

    Many airlines flying from Ontario to Keflavik Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Keflavik Intl?

    Yes, you can often find last-minute deals on Ontario to Keflavik Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Reykjavik Keflavik Intl Airport flight deals updated?

    The Ontario to Reykjavik Keflavik Intl Airport flight deals you see on this page were last updated on 6/9.

  • What is the cheapest month to book a flight from Ontario to Reykjavik Keflavik Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Reykjavik Keflavik Intl Airport (average of $339). Flying from Ontario to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $704). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Keflavik Intl
See prices for flight routes from nearby airports that may be better suited for you.

Los Angeles to Keflavik Intl flights
San Francisco to Keflavik Intl flights
Santa Ana to Keflavik Intl flights
San Jose to Keflavik Intl flights
San Diego to Keflavik Intl flights
Oakland to Keflavik Intl flights
Burbank to Keflavik Intl flights
Las Vegas to Keflavik Intl flights
Sacramento to Keflavik Intl flights
Fresno to Keflavik Intl flights
Reno to Keflavik Intl flights
Long Beach to Keflavik Intl flights
Santa Rosa to Keflavik Intl flights
Medford to Keflavik Intl flights
Monterey to Keflavik Intl flights
Los Angeles to Reykjavik Domestic flights
New York John F Kennedy Intl Airport to Manila flights
New York John F Kennedy Intl Airport to Los Angeles flights
Charlotte to Dallas flights
Miami to London flights
Los Angeles to Denver flights
Austin to Seattle flights
Las Vegas to Los Angeles flights
Salt Lake City to Las Vegas flights
Los Angeles to Atlanta flights
Miami to Orlando flights
San Francisco to Seattle flights
Ontario to Cambodia flights

Search flights from Ontario to Keflavik Intl by cabin class

Find flights from Ontario to Keflavik Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines