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Reykjavik

$421+ Cheap flights from Ontario (ONT) to Reykjavik (REK)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — REK
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Ontario to Reykjavik

Cheapest flights from Ontario to Reykjavik
Explore the most affordable flight options available from Ontario to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 pm
ONT
-
KEF
2 stops52h 15m
Delta
Mon 5/119:30 am
KEF
-
ONT
2 stops21h 04m
Delta
Deal found 2/1$571
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 pm
ONT
-
KEF
2 stops28h 15m
Delta
Sat 5/911:25 am
KEF
-
ONT
2 stops17h 29m
Delta
Deal found 2/1$611
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:00 am
ONT
-
KEF
1 stop18h 30m
United Airlines
Wed 5/2012:00 pm
KEF
-
ONT
1 stop17h 30m
United Airlines
Deal found 2/2$651
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:05 am
ONT
-
KEF
2 stops16h 15m
Delta
Wed 5/2011:25 am
KEF
-
ONT
2 stops17h 29m
Delta
Deal found 2/2$656
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:52 pm
ONT
-
KEF
2 stops34h 08m
American Airlines
Mon 5/1110:40 am
KEF
-
ONT
2 stops41h 14m
American Airlines
Deal found 2/1$723
This Trip.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:59 am
ONT
-
KEF
1 stop22h 01m
Multiple Airlines
Thu 4/234:50 pm
KEF
-
ONT
1 stop14h 05m
Multiple Airlines
Deal found 2/3$729
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:43 pm
ONT
-
KEF
2 stops27h 22m
Multiple Airlines
Mon 3/94:55 pm
KEF
-
ONT
1 stop14h 04m
Multiple Airlines
Deal found 1/31$761
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
ONT
-
KEF
1 stop20h 00m
Alaska Airlines
Thu 8/2712:45 pm
KEF
-
ONT
1 stop16h 54m
Alaska Airlines
Deal found 2/2$770
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:08 pm
ONT
-
KEF
2 stops36h 17m
American Airlines
Fri 5/810:30 am
KEF
-
ONT
2 stops18h 29m
American Airlines
Deal found 2/1$773
This Trip.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/812:59 am
ONT
-
KEF
1 stop22h 01m
Multiple Airlines
Sat 5/164:50 pm
KEF
-
ONT
1 stop14h 05m
Multiple Airlines
Deal found 2/2$782
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:00 am
ONT
-
KEF
1 stop18h 30m
United Airlines
Wed 6/39:15 am
KEF
-
ONT
2 stops39h 03m
United Airlines
Deal found 2/1$798
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:00 am
ONT
-
KEF
1 stop18h 30m
United Airlines
Tue 6/910:00 am
KEF
-
ONT
2 stops41h 17m
United Airlines
Deal found 2/3$802

Find flight deals from Ontario to Reykjavik

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Reykjavik (REK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$571
(Delta)

One-way from

$421
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$983
Provider with most accurate pricing for Ontario-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Reykjavik (REK) flights.
Search Deals
From Ontario to Reykjavik (REK)
Search Deals
One-way flight from Ontario to Reykjavik (REK)
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Reykjavik 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 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Ontario to Reykjavik that are best for you.

Fly from

Ontario

Fly to

Reykjavik

Route

Depart

Return

Price

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 5/1

10:15 pm-9:30 am

2 stops52h 15m

Reykjavik Keflavik Intl

Mon 5/11

9:30 am-11:34 pm

2 stops21h 04m

$571

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 5/12

7:00 am-8:30 am

1 stop18h 30m

Reykjavik Keflavik Intl

Wed 5/20

12:00 pm-9:58 pm

2 stops16h 58m

$656

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 4/28

10:59 am-9:40 am

2 stops39h 41m

Reykjavik Keflavik Intl

Mon 5/11

10:40 am-6:24 pm

2 stops38h 44m

$723

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Mon 4/27

2:08 pm-10:00 am

2 stops36h 52m

Reykjavik Keflavik Intl

Thu 5/7

10:40 am-11:46 pm

2 stops20h 06m

$723

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Wed 4/29

2:08 pm-9:40 am

2 stops36h 32m

Reykjavik Keflavik Intl

Thu 5/7

10:40 am-6:30 pm

2 stops38h 50m

$723

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 4/17

12:59 am-6:00 am

1 stop22h 01m

Reykjavik Keflavik Intl

Thu 4/23

4:50 pm-11:55 pm

1 stop14h 05m

$729

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 5/1

2:08 pm-9:30 am

2 stops36h 22m

Reykjavik Keflavik Intl

Thu 5/7

10:40 am-4:22 pm

2 stops36h 42m

$773

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sun 5/17

7:00 am-8:30 am

1 stop18h 30m

Reykjavik Keflavik Intl

Wed 6/3

9:15 am-5:18 pm

2 stops39h 03m

$798

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 5/19

7:00 am-8:30 am

1 stop18h 30m

Reykjavik Keflavik Intl

Tue 6/9

10:00 am-10:34 pm

3 stops43h 34m

$802

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Wed 4/29

1:55 pm-6:00 am

1 stop33h 05m

Reykjavik Keflavik Intl

Sat 5/9

7:50 pm-3:10 pm

1 stop26h 20m

$816

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on Ontario-Reykjavik flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Reykjavik flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Reykjavik flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Reykjavik flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Reykjavik flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Reykjavik

What is the cheapest month to book a flight from Ontario to Reykjavik?

Currently, January is the cheapest month in which you can book a flight from Ontario to Reykjavik (average of $399). Flying from Ontario to Reykjavik in December is currently the most expensive (average of $885). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Reykjavik. 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?

    For a flight from Ontario to Reykjavik, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to Reykjavik per day. 0 airlines have flights to Reykjavik from Ontario on a regular basis.

  • How long is the flight from Ontario to Reykjavik?

    Departing from Ontario to Reykjavik will take you 18h 30m. The distance from Ontario to Reykjavik is about 4271 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Ontario to Reykjavik?

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Reykjavik (average of $399). Flying from Ontario to Reykjavik in December is currently the most expensive (average of $885). 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

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