ONT - KEF

$376 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
$690
Typical prices: $816-$1,189
Multiple Airlines
Tue 1/16Tue 1/23
ONT - KEF • 1 stop
Cheapest one-way
$376
Typical prices: $535-$699
Air France
Sat 4/21
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 • 24% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $1,047 (round-trip)
Denver Intl (DEN)
Shortest trip • 12h 44m (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, Jan 16 - Sat, Jan 23
Multiple Airlines Logo
6:30 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
15h 35m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 12:05 amKEF  Reykjavik Keflavik Intl-ONT Ontario
15h 10m1 stop Denver Intl
$690Multiple Airlines
Sat, Jan 30 - Sat, Feb 6
Multiple Airlines Logo
6:30 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
15h 35m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 12:05 amKEF  Reykjavik Keflavik Intl-ONT Ontario
15h 10m1 stop Denver Intl
$698Multiple Airlines
Sat, Dec 5 - Wed, Dec 9
Multiple Airlines Logo
6:00 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
16h 05m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 10:17 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
13h 22m1 stop Denver Intl
$713Multiple Airlines
Tue, Dec 1 - Tue, Dec 8
Multiple Airlines Logo
2:00 pm - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
32h 05m2 stops Las Vegas Harry Reid Intl Denver Intl
Multiple Airlines Logo
4:55 pm - 10:17 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
13h 22m1 stop Denver Intl
$725Multiple Airlines
Sat, Dec 5 - Wed, Dec 9
Multiple Airlines Logo
6:00 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
16h 05m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 11:23 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
38h 28m2 stops Denver Intl San Francisco
$745Multiple Airlines
Sat, Jan 16 - Sat, Jan 23
Multiple Airlines Logo
6:30 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
15h 35m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 7:07 amKEF  Reykjavik Keflavik Intl-ONT Ontario
22h 12m2 stops Denver Intl Las Vegas Harry Reid Intl
$752Multiple Airlines
Sat, Jan 30 - Sat, Feb 6
Multiple Airlines Logo
6:30 am - 6:05 amONT  Ontario-KEF Reykjavik Keflavik Intl
15h 35m1 stop Denver Intl
Multiple Airlines Logo
4:55 pm - 7:07 amKEF  Reykjavik Keflavik Intl-ONT Ontario
22h 12m2 stops Denver Intl Las Vegas Harry Reid Intl
$762Multiple Airlines
Mon, Feb 22 - Mon, Mar 1
Multiple Airlines Logo
10:34 am - 5:15 pmONT  Ontario-KEF Reykjavik Keflavik Intl
22h 41m2 stops Dallas/Fort Worth Helsinki-Vantaa
Multiple Airlines Logo
10:00 am - 10:31 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
44h 31m2 stops Helsinki-Vantaa Dallas/Fort Worth
$763Multiple Airlines
Mon, Apr 26 - Thu, May 6
Alaska Airlines Logo
6:00 am - 9:25 amONT  Ontario-KEF Reykjavik Keflavik Intl
20h 25m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:50 pm - 10:39 pmKEF  Reykjavik Keflavik Intl-ONT Ontario
12h 49m1 stop Seattle/Tacoma Intl
$1,035Alaska Airlines
Wed, Dec 23 - Sun, Jan 10
Alaska Airlines Logo
8:59 pm - 6:15 amONT  Ontario-KEF Reykjavik Keflavik Intl
25h 16m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:50 pm - 10:00 amKEF  Reykjavik Keflavik Intl-ONT Ontario
25h 10m1 stop Portland
$1,044Alaska 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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Reykjavik Keflavik Intl Airport. It’s 13% cheaper than the average day, while Wednesday is the most expensive, with prices 17% higher.

Find deals

Key details for Ontario to Reykjavik Keflavik Intl Airport flights

Low season

January

Cheapest flight

$376
Beat the crowds with an average 79% drop in travelers.
The most popular month to fly with an average 86% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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

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

    A nonstop flight from Ontario to Reykjavik Keflavik Intl Airport takes 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 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 $816 to $1,189, with an average of $990 over the past 12 months. Anything below $816 counts as a good deal.

  • Have flight prices from Ontario to Reykjavik Keflavik Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $690 to $4,456. That means the highest observed fare was about 6x higher than the lowest one.

  • 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 in line with typical prices for this route. Average one-way fares are about $596.

  • 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 averaging $63 for economy cars. Top options include:

    • Ice Rental 4x4
    • Fair Car
    • Budget
    • Alamo
    • Europcar

  • 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).

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

    Connecting flights from Ontario to Reykjavik Keflavik Intl Airport most commonly pass through:

    • Denver Intl (DEN) - 57% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 43% of one-stop connections

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

    Yes. Flexible dates can save you up to 26% on flights from Ontario to Reykjavik Keflavik Intl Airport. Monday is the cheapest departure day at $867 round-trip on average, while Wednesday is the most expensive at $1,160, a difference of $293.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 44m, compared with 14h 17m via Seattle/Tacoma Intl (SEA).

  • 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 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.

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 are flexible, aim for a Monday departure and avoid flying on Wednesday. On this route, Monday flights average $867, about $293 less than Wednesday fares (25% 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 $752 round-trip in that month - typically $587 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

Car rentals in Reykjavik
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