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Cheap flights from Ontario to Reykjavik from $401

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Reykjavik departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Reykjavik

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:15 am - 6:00 am
ONT
-
KEF
16h 45m
1 stop
Multiple Airlines Logo
4:50 pm - 11:56 pm
KEF
-
ONT
14h 06m
1 stop
$624Multiple Airlines
Tue, Mar 31 - Wed, Apr 8
Multiple Airlines Logo
6:14 am - 6:15 am
ONT
-
KEF
16h 01m
1 stop
Multiple Airlines Logo
5:00 pm - 11:32 pm
KEF
-
ONT
14h 32m
1 stop
$633Multiple Airlines
Sat, Feb 28 - Sat, Mar 7
Multiple Airlines Logo
6:15 am - 6:05 am
ONT
-
KEF
16h 50m
1 stop
Multiple Airlines Logo
4:55 pm - 11:59 pm
KEF
-
ONT
14h 04m
1 stop
$685Multiple Airlines
Mon, Mar 9 - Thu, Mar 19
Multiple Airlines Logo
6:15 am - 6:05 am
ONT
-
KEF
16h 50m
1 stop
Multiple Airlines Logo
4:50 pm - 11:56 pm
KEF
-
ONT
14h 06m
1 stop
$720Multiple Airlines
Sat, Mar 28 - Fri, Apr 3
Multiple Airlines Logo
6:15 am - 6:05 am
ONT
-
KEF
16h 50m
1 stop
Multiple Airlines Logo
4:55 pm - 3:37 pm
KEF
-
ONT
29h 42m
2 stops
$763Multiple Airlines
Mon, Mar 9 - Thu, Mar 19
Multiple Airlines Logo
7:00 am - 8:30 am
ONT
-
KEF
18h 30m
1 stop
Multiple Airlines Logo
12:00 pm - 10:26 pm
KEF
-
ONT
17h 26m
1 stop
$770Multiple Airlines
Wed, May 13 - Fri, May 22
Multiple Airlines Logo
10:33 am - 6:15 am
ONT
-
KEF
12h 42m
1 stop
Multiple Airlines Logo
7:45 pm - 10:19 am
KEF
-
ONT
21h 34m
2 stops
$814Multiple Airlines
Tue, Mar 31 - Wed, Apr 8
Alaska Airlines Logo
1:47 pm - 9:00 am
ONT
-
KEF
12h 13m
1 stop
Alaska Airlines Logo
12:45 pm - 11:56 pm
KEF
-
ONT
18h 11m
1 stop
$827Alaska Airlines
Tue, Jul 7 - Tue, Jul 14
Alaska Airlines Logo
7:48 pm - 9:00 am
ONT
-
KEF
30h 12m
1 stop
Alaska Airlines Logo
12:45 pm - 11:56 pm
KEF
-
ONT
18h 11m
1 stop
$836Alaska Airlines
Sat, Jun 27 - Tue, Jul 14
Alaska Airlines Logo
12:13 pm - 9:00 am
ONT
-
KEF
13h 47m
1 stop
Alaska Airlines Logo
12:45 pm - 11:56 pm
KEF
-
ONT
18h 11m
1 stop
$850Alaska Airlines
Wed, Jul 8 - Tue, Jul 14

Icelandair flights from Ontario to Reykjavik Keflavik Intl Airport

Our best Icelandair deals on Ontario to Reykjavik Keflavik Intl Airport flight tickets
Icelandair
Apr 21
ONT10:59 amOntario
12h 06m
1 stop
KEF6:05 amReykjavik Keflavik Intl
Apr 28
KEF4:50 pmReykjavik Keflavik Intl
12h 42m
1 stop
ONT10:32 pmOntario
$916
Icelandair
Feb 26
ONT6:14 amOntario
16h 01m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Mar 17
KEF5:00 pmReykjavik Keflavik Intl
12h 44m
1 stop
ONT10:44 pmOntario
$1,016
Icelandair
Jul 2
ONT7:00 amOntario
16h 05m
1 stop
KEF6:05 amReykjavik Keflavik Intl
Jul 11
KEF10:40 amReykjavik Keflavik Intl
20h 14m
1 stop
ONT11:54 pmOntario
$1,054

Delta flights from Ontario to Reykjavik Keflavik Intl Airport

Our best Delta deals on Ontario to Reykjavik Keflavik Intl Airport flight tickets
Delta
May 21
ONT7:00 amOntario
17h 00m
2 stops
KEF7:00 amReykjavik Keflavik Intl
May 27
KEF9:30 amReykjavik Keflavik Intl
21h 14m
2 stops
ONT11:44 pmOntario
$928
Delta
Mar 31
ONT6:00 amOntario
20h 30m
2 stops
KEF9:30 amReykjavik Keflavik Intl
Apr 8
KEF11:25 amReykjavik Keflavik Intl
19h 25m
2 stops
ONT11:50 pmOntario
$1,018

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Reykjavik Keflavik Intl Airport 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, momondo users made 832,500 searches. Data last updated January 15, 2026.
Use the filters below to find and compare flights from Ontario to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 3/31

6:15 am-6:00 am

1 stop16h 45m

Reykjavik Keflavik Intl

Wed 4/8

4:50 pm-11:56 pm

1 stop14h 06m

$624

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 2/28

6:14 am-6:15 am

1 stop16h 01m

Reykjavik Keflavik Intl

Sat 3/7

5:00 pm-11:32 pm

1 stop14h 32m

$633

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Mon 3/9

6:15 am-6:05 am

1 stop16h 50m

Reykjavik Keflavik Intl

Thu 3/19

4:55 pm-11:59 pm

1 stop14h 04m

$685

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 3/28

6:15 am-6:05 am

1 stop16h 50m

Reykjavik Keflavik Intl

Fri 4/3

4:50 pm-11:56 pm

1 stop14h 06m

$720

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Mon 3/9

6:15 am-6:05 am

1 stop16h 50m

Reykjavik Keflavik Intl

Thu 3/19

4:55 pm-3:37 pm

2 stops29h 42m

$763

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Wed 5/13

7:00 am-8:30 am

1 stop18h 30m

Reykjavik Keflavik Intl

Fri 5/22

12:00 pm-10:26 pm

1 stop17h 26m

$770

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 3/31

10:33 am-6:15 am

1 stop12h 42m

Reykjavik Keflavik Intl

Wed 4/8

7:45 pm-10:19 am

2 stops21h 34m

$814

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 7/7

1:47 pm-9:00 am

1 stop12h 13m

Reykjavik Keflavik Intl

Tue 7/14

12:45 pm-11:56 pm

1 stop18h 11m

$827

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 6/27

7:48 pm-9:00 am

1 stop30h 12m

Reykjavik Keflavik Intl

Tue 7/14

12:45 pm-11:56 pm

1 stop18h 11m

$836

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Wed 7/8

12:13 pm-9:00 am

1 stop13h 47m

Reykjavik Keflavik Intl

Tue 7/14

12:45 pm-11:56 pm

1 stop18h 11m

$850

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Reykjavik from

How to get the cheapest flight ticket from Ontario to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Ontario to Reykjavik Keflavik Intl Airport flights?

You could potentially save up to 30% on your flight if you consider stops on a Ontario to Reykjavik Keflavik Intl Airport flight.

When to book flights from Ontario to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Reykjavik Keflavik Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Reykjavik Keflavik Intl Airport (ONT to KEF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Reykjavik Keflavik Intl Airport

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Ontario to Reykjavik Keflavik Intl Airport takes 12h 20m
There are no direct flights from Ontario to Reykjavik Keflavik Intl Airport. There are no popular flight routes from Ontario to Reykjavik Keflavik Intl Airport.
Search flight deals

  • How far is Ontario to Reykjavik Keflavik Intl by plane?

    A flight from Ontario to Reykjavik Keflavik Intl will travel around 4272.1 mi. Typically, this will take 12h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Reykjavik Keflavik Intl Airport?

    Prices for flights from Ontario Airport to Reykjavik Keflavik Intl Airport were last updated today.

  • How old do you have to be to fly from Ontario Airport to Reykjavik Keflavik Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The travel and health documents required for your trip to Reykjavik Keflavik Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Reykjavik Keflavik Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hella
Borgarnes
Hveragerdi
Grindavik
Kopavogur

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Reykjavik?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Reykjavik for you.

Can I find flights from Ontario to Reykjavik with flexible booking policies on momondo?

Flights from Ontario to Reykjavik with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Reykjavik?

Once you have performed a search for Ontario to Reykjavik flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Reykjavik right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Reykjavik flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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