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Cheap flights from Ontario to Reykjavik from $421

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 5/13. 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.
Delta Logo
10:15 pm - 9:30 am
ONT
-
KEF
52h 15m
2 stops
Delta Logo
11:25 am - 9:54 pm
KEF
-
ONT
17h 29m
2 stops
$521Delta
Fri, May 1 - Tue, May 12
Delta Logo
7:05 am - 9:30 am
ONT
-
KEF
19h 25m
2 stops
Delta Logo
11:25 am - 10:57 am
KEF
-
ONT
30h 32m
2 stops
$560Delta
Fri, May 1 - Thu, May 7
Delta Logo
10:15 pm - 9:30 am
ONT
-
KEF
52h 15m
2 stops
Delta Logo
11:25 am - 10:57 am
KEF
-
ONT
30h 32m
2 stops
$571Delta
Fri, May 1 - Mon, May 11
Delta Logo
10:15 pm - 9:30 am
ONT
-
KEF
52h 15m
2 stops
Delta Logo
11:25 am - 10:57 am
KEF
-
ONT
30h 32m
2 stops
$583Delta
Fri, May 1 - Sun, May 10
Multiple Airlines Logo
1:55 pm - 6:00 am
ONT
-
KEF
33h 05m
1 stop
Multiple Airlines Logo
4:50 pm - 10:40 pm
KEF
-
ONT
12h 50m
1 stop
$608Multiple Airlines
Wed, Apr 29 - Thu, May 7
Delta Logo
10:15 pm - 9:30 am
ONT
-
KEF
28h 15m
2 stops
Delta Logo
11:25 am - 9:54 pm
KEF
-
ONT
17h 29m
2 stops
$610Delta
Fri, May 1 - Sat, May 9
Delta Logo
7:00 am - 9:30 am
ONT
-
KEF
19h 30m
2 stops
Delta Logo
11:25 am - 9:54 pm
KEF
-
ONT
17h 29m
2 stops
$697Delta
Wed, Apr 29 - Thu, May 7
American Airlines Logo
4:52 pm - 9:55 am
ONT
-
KEF
34h 03m
2 stops
American Airlines Logo
11:00 am - 9:59 pm
KEF
-
ONT
41h 59m
2 stops
$722American Airlines
Sun, Apr 26 - Wed, May 6
American Airlines Logo
4:52 pm - 9:55 am
ONT
-
KEF
58h 03m
2 stops
American Airlines Logo
10:40 am - 4:22 pm
KEF
-
ONT
36h 42m
2 stops
$728American Airlines
Sat, Apr 25 - Mon, May 11
Multiple Airlines Logo
12:59 am - 6:00 am
ONT
-
KEF
22h 01m
1 stop
Multiple Airlines Logo
4:50 pm - 11:55 pm
KEF
-
ONT
14h 05m
1 stop
$729Multiple Airlines
Fri, Apr 17 - Thu, Apr 23

Delta flights from Ontario to Reykjavik Keflavik Intl Airport

Our best Delta deals on Ontario to Reykjavik Keflavik Intl Airport flight tickets
Delta
May 1
ONT10:15 pmOntario
52h 15m
2 stops
KEF9:30 amReykjavik Keflavik Intl
May 12
KEF11:25 amReykjavik Keflavik Intl
17h 29m
2 stops
ONT9:54 pmOntario
$521
Delta
May 1
ONT7:05 amOntario
19h 25m
2 stops
KEF9:30 amReykjavik Keflavik Intl
May 7
KEF11:25 amReykjavik Keflavik Intl
30h 32m
2 stops
ONT10:57 amOntario
$560
Delta
May 1
ONT10:15 pmOntario
52h 15m
2 stops
KEF9:30 amReykjavik Keflavik Intl
May 11
KEF11:25 amReykjavik Keflavik Intl
30h 32m
2 stops
ONT10:57 amOntario
$571

American Airlines flights from Ontario to Reykjavik Keflavik Intl Airport

Our best American Airlines deals on Ontario to Reykjavik Keflavik Intl Airport flight tickets
American Airlines
Apr 26
ONT4:52 pmOntario
34h 03m
2 stops
KEF9:55 amReykjavik Keflavik Intl
May 6
KEF11:00 amReykjavik Keflavik Intl
41h 59m
2 stops
ONT9:59 pmOntario
$722
American Airlines
Apr 25
ONT4:52 pmOntario
58h 03m
2 stops
KEF9:55 amReykjavik Keflavik Intl
May 11
KEF10:40 amReykjavik Keflavik Intl
36h 42m
2 stops
ONT4:22 pmOntario
$728
American Airlines
Apr 30
ONT4:52 pmOntario
33h 33m
2 stops
KEF9:25 amReykjavik Keflavik Intl
May 12
KEF10:50 amReykjavik Keflavik Intl
36h 32m
2 stops
ONT4:22 pmOntario
$772

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 February 6, 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

Fri 5/1

10:15 pm-9:30 am

2 stops52h 15m

Reykjavik Keflavik Intl

Tue 5/12

11:25 am-9:54 pm

2 stops17h 29m

$521

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 5/1

7:05 am-9:30 am

2 stops19h 25m

Reykjavik Keflavik Intl

Thu 5/7

11:25 am-10:57 am

2 stops30h 32m

$560

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 5/1

10:15 pm-9:30 am

2 stops52h 15m

Reykjavik Keflavik Intl

Mon 5/11

11:25 am-10:57 am

2 stops30h 32m

$571

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 5/1

10:15 pm-9:30 am

2 stops52h 15m

Reykjavik Keflavik Intl

Sun 5/10

11:25 am-10:57 am

2 stops30h 32m

$583

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Wed 4/29

1:55 pm-6:00 am

1 stop33h 05m

Reykjavik Keflavik Intl

Thu 5/7

4:50 pm-10:40 pm

1 stop12h 50m

$608

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Fri 5/1

10:15 pm-9:30 am

2 stops28h 15m

Reykjavik Keflavik Intl

Sat 5/9

11:25 am-9:54 pm

2 stops17h 29m

$610

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Wed 4/29

7:00 am-9:30 am

2 stops19h 30m

Reykjavik Keflavik Intl

Thu 5/7

11:25 am-9:54 pm

2 stops17h 29m

$697

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sun 4/26

4:52 pm-9:55 am

2 stops34h 03m

Reykjavik Keflavik Intl

Wed 5/6

11:00 am-9:59 pm

2 stops41h 59m

$722

OntarioReykjavik

ONT - KEF

ONTKEF

Ontario

Sat 4/25

4:52 pm-9:55 am

2 stops58h 03m

Reykjavik Keflavik Intl

Mon 5/11

10:40 am-4:22 pm

2 stops36h 42m

$728

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

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 00m

Direct flights

None
The fastest flight from Ontario to Reykjavik Keflavik Intl Airport takes 12h 00m
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 00m 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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