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Cheap flights from Ontario to Reykjavik from $609

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 1/6. 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.
Alaska Airlines Logo
11:51 am - 9:50 am
ONT
-
KEF
14h 59m1 stop
Alaska Airlines Logo
12:45 pm - 6:25 pm
KEF
-
ONT
12h 40m1 stop
$812Alaska Airlines
Sat, May 30 - Sat, Jun 6
Multiple Airlines Logo
7:00 am - 6:15 am
ONT
-
KEF
15h 15m2 stops
Multiple Airlines Logo
5:00 pm - 10:59 am
KEF
-
ONT
25h 59m1 stop
$816Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Alaska Airlines Logo
6:14 am - 6:15 am
ONT
-
KEF
16h 01m1 stop
Alaska Airlines Logo
5:00 pm - 11:32 pm
KEF
-
ONT
14h 32m1 stop
$882Alaska Airlines
Wed, Feb 25 - Sat, Mar 7
Alaska Airlines Logo
6:14 am - 6:15 am
ONT
-
KEF
16h 01m1 stop
Alaska Airlines Logo
5:00 pm - 11:32 pm
KEF
-
ONT
14h 32m1 stop
$911Alaska Airlines
Tue, Feb 17 - Mon, Feb 23
Alaska Airlines Logo
4:03 pm - 6:15 am
ONT
-
KEF
30h 12m1 stop
Alaska Airlines Logo
5:00 pm - 10:59 am
KEF
-
ONT
25h 59m1 stop
$929Alaska Airlines
Sat, Jan 31 - Sat, Feb 7
United Airlines Logo
6:00 am - 8:30 am
ONT
-
KEF
19h 30m2 stops
United Airlines Logo
12:00 pm - 10:26 pm
KEF
-
ONT
17h 26m1 stop
$958United Airlines
Tue, Jun 9 - Fri, Jun 19
United Airlines Logo
6:53 pm - 8:45 am
ONT
-
KEF
30h 52m3 stops
United Airlines Logo
12:00 pm - 11:06 pm
KEF
-
ONT
18h 06m2 stops
$964United Airlines
Tue, Jun 9 - Fri, Jun 19
Alaska Airlines Logo
11:51 am - 9:50 am
ONT
-
KEF
14h 59m1 stop
Alaska Airlines Logo
12:45 pm - 10:46 pm
KEF
-
ONT
17h 01m1 stop
$979Alaska Airlines
Fri, May 29 - Fri, Jun 5
Alaska Airlines Logo
4:45 pm - 2:00 pm
ONT
-
KEF
14h 15m1 stop
Alaska Airlines Logo
4:50 pm - 11:59 pm
KEF
-
ONT
14h 09m1 stop
$997Alaska Airlines
Tue, Jun 9 - Fri, Jun 19
Multiple Airlines Logo
8:55 am - 6:05 am
ONT
-
KEF
13h 10m1 stop
Multiple Airlines Logo
5:00 pm - 10:44 pm
KEF
-
ONT
12h 44m1 stop
$1,015Multiple Airlines
Tue, Mar 3 - Wed, Mar 11

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
May 30
ONT11:51 amOntario
14h 59m
1 stop
KEF9:50 amReykjavik Keflavik Intl
Jun 6
KEF12:45 pmReykjavik Keflavik Intl
12h 40m
1 stop
ONT6:25 pmOntario
$812
Find similar
Alaska Airlines
Feb 18
ONT6:14 amOntario
16h 01m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Feb 24
KEF5:00 pmReykjavik Keflavik Intl
13h 44m
1 stop
ONT10:44 pmOntario
$882
Find similar
Alaska Airlines
Feb 17
ONT6:14 amOntario
16h 01m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Feb 23
KEF5:00 pmReykjavik Keflavik Intl
14h 32m
1 stop
ONT11:32 pmOntario
$911
Find similar

British Airways flights from Ontario to Reykjavik Keflavik Intl Airport

Our best British Airways deals on Ontario to Reykjavik Keflavik Intl Airport flight tickets
British Airways
Mar 15
ONT2:47 pmOntario
37h 08m
2 stops
KEF10:55 amReykjavik Keflavik Intl
Mar 21
KEF11:55 amReykjavik Keflavik Intl
41h 12m
2 stops
ONT10:07 pmOntario
$1,386
Find similar
British Airways
Feb 19
ONT2:44 pmOntario
18h 31m
2 stops
KEF5:15 pmReykjavik Keflavik Intl
Feb 27
KEF11:50 amReykjavik Keflavik Intl
20h 08m
2 stops
ONT11:58 pmOntario
$1,546
Find similar
British Airways
Mar 21
ONT10:56 amOntario
23h 09m
2 stops
KEF5:05 pmReykjavik Keflavik Intl
Mar 28
KEF10:00 amReykjavik Keflavik Intl
39h 42m
2 stops
ONT6:42 pmOntario
$1,655
Find similar

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 December 18, 2025.
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

Sat 5/30

11:51 am-9:50 am

1 stop14h 59m

Reykjavik Keflavik Intl

Sat 6/6

12:45 pm-6:25 pm

1 stop12h 40m

$812

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 1/31

7:00 am-6:15 am

2 stops15h 15m

Reykjavik Keflavik Intl

Sat 2/7

5:00 pm-10:59 am

1 stop25h 59m

$816

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Wed 2/25

6:14 am-6:15 am

1 stop16h 01m

Reykjavik Keflavik Intl

Sat 3/7

5:00 pm-11:32 pm

1 stop14h 32m

$882

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 2/17

6:14 am-6:15 am

1 stop16h 01m

Reykjavik Keflavik Intl

Mon 2/23

5:00 pm-11:32 pm

1 stop14h 32m

$911

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 1/31

4:03 pm-6:15 am

1 stop30h 12m

Reykjavik Keflavik Intl

Sat 2/7

5:00 pm-10:59 am

1 stop25h 59m

$929

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 6/9

6:00 am-8:30 am

2 stops19h 30m

Reykjavik Keflavik Intl

Fri 6/19

12:00 pm-10:26 pm

1 stop17h 26m

$958

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 6/9

6:53 pm-8:45 am

3 stops30h 52m

Reykjavik Keflavik Intl

Fri 6/19

12:00 pm-11:06 pm

2 stops18h 06m

$964

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 5/29

11:51 am-9:50 am

1 stop14h 59m

Reykjavik Keflavik Intl

Fri 6/5

12:45 pm-10:46 pm

1 stop17h 01m

$979

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 6/9

4:45 pm-2:00 pm

1 stop14h 15m

Reykjavik Keflavik Intl

Fri 6/19

4:50 pm-11:59 pm

1 stop14h 09m

$997

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Tue 3/3

8:55 am-6:05 am

1 stop13h 10m

Reykjavik Keflavik Intl

Wed 3/11

5:00 pm-10:44 pm

1 stop12h 44m

$1,015

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

What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest day to depart from Ontario to Reykjavik Keflavik Intl Airport is on a Tuesday when prices can be found for as low as $818. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Friday, with ticket prices averaging around $1,000.

What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is at noon when flights can be purchased for as low as $872. Flights in the afternoon are often more expensive with an average ticket price of $974.

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

11h 31m

Direct flights

None
The fastest flight from Ontario to Reykjavik Keflavik Intl Airport takes 11h 31m
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 11h 31m 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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