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Cheap flights from Ontario to Reykjavik from $536

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 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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.
Alaska Airlines Logo
6:00 am - 9:00 am
ONT
-
KEF
20h 00m
1 stop
Alaska Airlines Logo
12:45 pm - 11:58 pm
KEF
-
ONT
18h 13m
1 stop
$694Alaska Airlines
Tue, Jun 2 - Fri, Jun 5
Alaska Airlines Logo
4:03 pm - 9:00 am
ONT
-
KEF
33h 57m
1 stop
Alaska Airlines Logo
12:45 pm - 11:11 pm
KEF
-
ONT
17h 26m
1 stop
$700Alaska Airlines
Sat, May 30 - Thu, Jun 11
Alaska Airlines Logo
4:03 pm - 9:00 am
ONT
-
KEF
33h 57m
1 stop
Alaska Airlines Logo
12:45 pm - 11:11 pm
KEF
-
ONT
17h 26m
1 stop
$701Alaska Airlines
Tue, Jun 9 - Fri, Jun 19
Alaska Airlines Logo
2:09 pm - 9:00 am
ONT
-
KEF
11h 51m
1 stop
Alaska Airlines Logo
12:45 pm - 6:13 pm
KEF
-
ONT
12h 28m
1 stop
$704Alaska Airlines
Tue, Aug 18 - Tue, Aug 25
Alaska Airlines Logo
8:11 pm - 9:00 am
ONT
-
KEF
29h 49m
1 stop
Alaska Airlines Logo
12:45 pm - 1:13 pm
KEF
-
ONT
31h 28m
1 stop
$707Alaska Airlines
Mon, Jun 8 - Wed, Jun 17
Alaska Airlines Logo
2:09 pm - 9:00 am
ONT
-
KEF
11h 51m
1 stop
Alaska Airlines Logo
12:45 pm - 11:11 pm
KEF
-
ONT
17h 26m
1 stop
$714Alaska Airlines
Mon, Jul 6 - Thu, Jul 9
Alaska Airlines Logo
4:03 pm - 9:00 am
ONT
-
KEF
33h 57m
1 stop
Alaska Airlines Logo
12:45 pm - 11:58 pm
KEF
-
ONT
18h 13m
1 stop
$760Alaska Airlines
Sat, May 30 - Sun, Jun 7
Alaska Airlines Logo
4:03 pm - 9:00 am
ONT
-
KEF
33h 57m
1 stop
Alaska Airlines Logo
12:45 pm - 11:11 pm
KEF
-
ONT
17h 26m
1 stop
$761Alaska Airlines
Sat, Jun 6 - Mon, Jun 15
Alaska Airlines Logo
2:09 pm - 9:00 am
ONT
-
KEF
11h 51m
1 stop
Alaska Airlines Logo
12:45 pm - 11:11 pm
KEF
-
ONT
17h 26m
1 stop
$765Alaska Airlines
Sat, Jul 4 - Tue, Jul 14
Alaska Airlines Logo
4:03 pm - 9:00 am
ONT
-
KEF
33h 57m
1 stop
Alaska Airlines Logo
12:45 pm - 11:14 am
KEF
-
ONT
29h 29m
1 stop
$769Alaska Airlines
Sat, Jun 6 - Sun, Jun 14

Alaska Airlines flights from Ontario to Reykjavik Keflavik Intl Airport

Our best Alaska Airlines deals on Ontario to Reykjavik Keflavik Intl Airport flight tickets
Alaska Airlines
Jun 2
ONT6:00 amOntario
20h 00m
1 stop
KEF9:00 amReykjavik Keflavik Intl
Jun 5
KEF12:45 pmReykjavik Keflavik Intl
18h 13m
1 stop
ONT11:58 pmOntario
$694
Alaska Airlines
May 30
ONT4:03 pmOntario
33h 57m
1 stop
KEF9:00 amReykjavik Keflavik Intl
Jun 11
KEF12:45 pmReykjavik Keflavik Intl
17h 26m
1 stop
ONT11:11 pmOntario
$700
Alaska Airlines
Jun 9
ONT4:03 pmOntario
33h 57m
1 stop
KEF9:00 amReykjavik Keflavik Intl
Jun 19
KEF12:45 pmReykjavik Keflavik Intl
17h 26m
1 stop
ONT11:11 pmOntario
$701

Icelandair flights from Ontario to Reykjavik Keflavik Intl Airport

Our best Icelandair deals on Ontario to Reykjavik Keflavik Intl Airport flight tickets
Icelandair
Apr 13
ONT10:33 amOntario
15h 52m
1 stop
KEF9:25 amReykjavik Keflavik Intl
May 12
KEF7:45 pmReykjavik Keflavik Intl
22h 27m
1 stop
ONT11:12 amOntario
$842
Icelandair
May 23
ONT4:03 pmOntario
14h 57m
1 stop
KEF2:00 pmReykjavik Keflavik Intl
Jun 2
KEF10:40 amReykjavik Keflavik Intl
30h 41m
1 stop
ONT10:21 amOntario
$898
Icelandair
Sep 13
ONT12:00 pmOntario
14h 25m
1 stop
KEF9:25 amReykjavik Keflavik Intl
Sep 20
KEF4:50 pmReykjavik Keflavik Intl
23h 35m
1 stop
ONT9:25 amOntario
$970

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 March 28, 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

Cheapest round-trip

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 6/2

6:00 am-9:00 am

1 stop20h 00m

Reykjavik Keflavik Intl

Fri 6/5

12:45 pm-11:58 pm

1 stop18h 13m

$694

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 5/30

4:03 pm-9:00 am

1 stop33h 57m

Reykjavik Keflavik Intl

Thu 6/11

12:45 pm-11:11 pm

1 stop17h 26m

$700

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 6/9

4:03 pm-9:00 am

1 stop33h 57m

Reykjavik Keflavik Intl

Fri 6/19

12:45 pm-11:11 pm

1 stop17h 26m

$701
Quickest round-trip

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 8/18

2:09 pm-9:00 am

1 stop11h 51m

Reykjavik Keflavik Intl

Tue 8/25

12:45 pm-6:13 pm

1 stop12h 28m

$704

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Mon 6/8

8:11 pm-9:00 am

1 stop29h 49m

Reykjavik Keflavik Intl

Wed 6/17

12:45 pm-1:13 pm

1 stop31h 28m

$707

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Mon 7/6

2:09 pm-9:00 am

1 stop11h 51m

Reykjavik Keflavik Intl

Thu 7/9

12:45 pm-11:11 pm

1 stop17h 26m

$714

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 5/30

4:03 pm-9:00 am

1 stop33h 57m

Reykjavik Keflavik Intl

Sun 6/7

12:45 pm-11:58 pm

1 stop18h 13m

$760

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 6/6

4:03 pm-9:00 am

1 stop33h 57m

Reykjavik Keflavik Intl

Mon 6/15

12:45 pm-11:11 pm

1 stop17h 26m

$761

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 7/4

2:09 pm-9:00 am

1 stop11h 51m

Reykjavik Keflavik Intl

Tue 7/14

12:45 pm-11:11 pm

1 stop17h 26m

$765

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 6/6

4:03 pm-9:00 am

1 stop33h 57m

Reykjavik Keflavik Intl

Sun 6/14

12:45 pm-11:14 am

1 stop29h 29m

$769

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 23% 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 02m

Direct flights

None
The fastest flight from Ontario to Reykjavik Keflavik Intl Airport takes 12h 02m
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 02m 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
Hveragerdi
Borgarnes
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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