ONT - KEF

$465 Find Cheap Flights from Ontario to Reykjavik - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$658
Typical prices: $889-$1,246
Multiple Airlines
Wed 10/31Wed 11/7
ONT - KEF • 1 stop
Cheapest one-way
$465
Typical prices: $535-$699
United Airlines
Thu 11/1
ONT - KEF • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and Reykjavik Keflavik Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
August
Cheapest • 11% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Baltimore/Washington (BWI)
Cheapest • Avg $983 (round-trip)
Denver Intl (DEN)
Shortest trip • 12h 41m (one-way)
Insights
Insights
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We hope you love your trip to Reykjavik Keflavik Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Keflavik Intl (ONT-KEF)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Keflavik Intl

Sat, Oct 31 - Sat, Nov 7
Multiple Airlines Logo
6:25 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
16h 40m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 11:51 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
14h 56m1 stop Denver Intl
$658Multiple Airlines
Sat, Oct 31 - Sat, Nov 7
Multiple Airlines Logo
6:25 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
16h 40m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 4:21 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
31h 26m2 stops Denver Intl Las Vegas Harry Reid Intl
$699Multiple Airlines
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
7:25 am - 6:15 amONT  Ontario-KEF Reykjavik Keflavik Intl
15h 50m2 stops Portland Seattle/Tacoma Intl
Multiple Airlines Logo
7:40 pm - 12:53 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
24h 13m1 stop Seattle/Tacoma Intl
$752Multiple Airlines
Mon, Nov 9 - Mon, Nov 16
Multiple Airlines Logo
8:35 pm - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
25h 30m2 stops Las Vegas Harry Reid Intl Denver Intl
Multiple Airlines Logo
4:55 pm - 11:51 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
14h 56m1 stop Denver Intl
$756Multiple Airlines
Mon, Nov 2 - Mon, Nov 9
Multiple Airlines Logo
6:00 am - 5:15 pmONT  Ontario-KEF Reykjavik Keflavik Intl
27h 15m2 stops Dallas/Fort Worth Helsinki-Vantaa
Multiple Airlines Logo
10:00 am - 10:57 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
44h 57m2 stops Helsinki-Vantaa Dallas/Fort Worth
$770Multiple Airlines
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
2:13 pm - 9:25 amONT  Ontario-KEF Reykjavik Keflavik Intl
12h 12m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
7:40 pm - 12:53 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
24h 13m1 stop Seattle/Tacoma Intl
$773Multiple Airlines
Mon, Nov 9 - Mon, Nov 16
Multiple Airlines Logo
2:22 pm - 9:15 amONT  Ontario-KEF Reykjavik Keflavik Intl
58h 53m2 stops Dallas/Fort Worth Helsinki-Vantaa
Multiple Airlines Logo
10:00 am - 6:42 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
40h 42m2 stops Helsinki-Vantaa Dallas/Fort Worth
$776Multiple Airlines
Sun, Nov 1 - Mon, Nov 9
Multiple Airlines Logo
2:23 pm - 6:15 amONT  Ontario-KEF Reykjavik Keflavik Intl
31h 52m2 stops Las Vegas Harry Reid Intl Seattle/Tacoma Intl
Multiple Airlines Logo
5:00 pm - 4:21 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
31h 21m2 stops Seattle/Tacoma Intl Las Vegas Harry Reid Intl
$777Multiple Airlines
Sat, Oct 24 - Sat, Oct 31
Multiple Airlines Logo
6:50 am - 6:00 amONT  Ontario-KEF Reykjavik Keflavik Intl
16h 10m1 stop Denver Intl
Multiple Airlines Logo
5:00 pm - 12:06 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
26h 06m1 stop Seattle/Tacoma Intl
$799Multiple Airlines
Sun, Oct 25 - Mon, Nov 2
United Airlines Logo
6:59 am - 10:00 amONT  Ontario-KEF Reykjavik Keflavik Intl
20h 01m1 stop Chicago O'Hare Intl
United Airlines Logo
12:00 pm - 6:47 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
14h 47m1 stop Chicago O'Hare Intl
$802United Airlines
Booking Insights

Price, demand and travel trends for Ontario to Reykjavik Keflavik Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Ontario to Reykjavik Keflavik Intl Airport with more confidence.

What's the cheapest day of the week to fly from Ontario to Reykjavik Keflavik Intl Airport?

Monday is the cheapest day of the week to fly from Ontario to Reykjavik Keflavik Intl Airport, it is 14% cheaper than the average day. Friday is the most expensive day with flight prices 17% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Ontario to Reykjavik Keflavik Intl Airport flights

Low season

January

Cheapest flight

$465
Most popular time to fly and prices are also 7% lower on average.
Flight from Ontario to Reykjavik Keflavik Intl Airport

When to book flights from Ontario to Keflavik Intl

Are your dates flexible? Find out the best times to travel from Ontario to Keflavik Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Reykjavik Keflavik Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Ontario to Reykjavik Keflavik Intl Airport?

    Flights from Ontario to Reykjavik Keflavik Intl Airport usually depart from Ontario (ONT) and arrive at Reykjavik Keflavik Intl (KEF).

  • What cabin classes can I book on flights from Ontario to Reykjavik Keflavik Intl Airport?

    Two cabin classes are available on flights from Ontario to Reykjavik Keflavik Intl Airport:

    • Economy Class
    • First Class

  • Which airports do connecting flights from Ontario to Reykjavik Keflavik Intl Airport pass through?

    One-stop flights from Ontario to Reykjavik Keflavik Intl Airport most commonly connect through:

    • Denver Intl (DEN) - 55% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 44% of one-stop connections
    • Baltimore/Washington (BWI) - 2% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Ontario to Reykjavik Keflavik Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 27% on the Ontario to Reykjavik Keflavik Intl Airport route. Monday is the cheapest departure day at $867 round-trip on average, while Friday is the most expensive at $1,177, a difference of $310. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Reykjavik Keflavik Intl Airport?

    Some of the most popular sights in Reykjavik Keflavik Intl Airport are Harpa, Laugardalsholl and The Settlement Exhibition: Reykjavík 871±2. These are among the most viewed places in Reykjavik Keflavik Intl Airport on KAYAK.

  • How long is a flight from Ontario to Reykjavik Keflavik Intl Airport?

    A nonstop flight from Ontario to Reykjavik Keflavik Intl Airport takes 0h 00m, covering 4,271 miles.

  • Do I need a passport to fly from Ontario to Reykjavik Keflavik Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Ontario to Reykjavik Keflavik Intl Airport looking right now?

    One-way fares from Ontario to Reykjavik Keflavik Intl Airport are currently lower than usual. Average one-way flight prices are about $524, which is 20% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Ontario to Reykjavik Keflavik Intl Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 12h 41m, compared with 14h 22m via Seattle/Tacoma Intl (SEA) and 18h 42m via Baltimore/Washington (BWI).

  • What is the time difference between Ontario and Reykjavik Keflavik Intl Airport?

    Reykjavik Keflavik Intl Airport is 7 hours ahead of Ontario (Greenwich Mean Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Reykjavik Keflavik Intl Airport (KEF)?

    Reykjavik Keflavik Intl Airport (KEF) hosts 5 major car rental companies, with daily rates starting from around $16 for economy cars. Top options include:
    • Ice Rental 4x4
    • Fair Car
    • Budget
    • Europcar
    • Alamo

  • How much should I expect to pay for a Ontario to Reykjavik Keflavik Intl Airport flight?

    Round-trip flights from Ontario to Reykjavik Keflavik Intl Airport range from $889 to $1,246, with an average of $1,001 over the past 12 months. Anything below $889 counts as a good deal.

Your guide to booking Ontario to Reykjavik Keflavik Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $867 - about $310 less than Friday (26% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Reykjavik Keflavik Intl Airport trip for August. Fares historically average $889 round-trip in that month - typically $450 less than the most expensive month, which is November (based on the last 12 months).

More options for your flight from Ontario to Keflavik Intl

Complete your trip to Reykjavik with a hotel stay or car rental

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