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Cheap flights from St. Louis to Reykjavik Keflavik Intl Airport from $625

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Reykjavik Keflavik Intl Airport departing on 5/6. 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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Find the cheapest flights from St. Louis to Reykjavik

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Reykjavik that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Reykjavik.

Cheap last minute flights

Planning a quick getaway from St. Louis to Reykjavik? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Reykjavik, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Reykjavik

Find recent round-trip train or bus tickets from St. Louis to Reykjavik.

All round-trip flight deals to Reykjavik

The cheapest plane tickets to Reykjavik found on KAYAK recently.
7:27 pm - 4:50 amSTL-KEF
28h 23m2 stops
3:05 pm - 6:27 pmKEF-STL
32h 22m3 stops
Tue, May 6 - Mon, May 12
10:45 am - 9:30 amSTL-KEF
17h 45m2 stops
11:25 am - 9:37 amKEF-STL
27h 12m2 stops
$626Delta
Find Deal
Tue, Apr 1 - Tue, Apr 8
4:26 pm - 10:50 amSTL-KEF
37h 24m2 stops
10:00 am - 7:25 pmKEF-STL
38h 25m2 stops
$645British Airways
Find Deal
Mon, Mar 10 - Mon, Mar 17
6:00 pm - 10:45 amSTL-KEF
34h 45m2 stops
11:45 am - 10:09 pmKEF-STL
40h 24m2 stops
$650British Airways
Find Deal
Tue, Jan 28 - Tue, Feb 4
10:45 am - 6:20 amSTL-KEF
14h 35m1 stop
11:25 am - 8:42 pmKEF-STL
14h 17m2 stops
$892KLM
Find Deal
Mon, May 12 - Tue, May 20
10:45 am - 6:20 amSTL-KEF
14h 35m1 stop
11:25 am - 8:42 pmKEF-STL
14h 17m2 stops
$987KLM
Find Deal
Mon, May 19 - Sun, May 25
8:25 am - 8:30 amSTL-KEF
19h 05m2 stops
10:00 am - 3:21 pmKEF-STL
34h 21m3 stops
$1,159United Airlines
Find Deal
Sun, May 25 - Sun, Jun 1
1:30 pm - 8:35 amSTL-KEF
14h 05m1 stop
10:00 am - 12:20 pmKEF-STL
31h 20m2 stops
$1,268United Airlines
Find Deal
Sat, Jun 14 - Sun, Jun 29
1:30 pm - 8:35 amSTL-KEF
14h 05m1 stop
10:00 am - 8:00 pmKEF-STL
15h 00m1 stop
$1,280Air Canada
Find Deal
Sat, Jun 14 - Sun, Jun 29
1:30 pm - 8:35 amSTL-KEF
14h 05m1 stop
10:00 am - 8:00 pmKEF-STL
15h 00m2 stops
$1,285Air Canada
Find Deal
Sat, Jun 21 - Sat, Jul 5
STL-KEF
3191 mimulti-stop
Multiple Airlines
Find Deal
12:15 pm - 6:40 amSTL-KEF
12h 25m2 stops
5:00 pm - 5:02 pmKEF-STL
30h 02m2 stops
$2,008
Find Deal
Wed, Jan 1 - Fri, Jan 3
1:00 pm - 6:40 amSTL-KEF
35h 40m2 stops
4:55 pm - 8:13 amKEF-STL
21h 18m1 stop
$2,040
Find Deal
Wed, Jan 1 - Fri, Jan 3
3:50 pm - 6:10 pmSTL-KEF
20h 20m3 stops
5:00 pm - 5:02 pmKEF-STL
30h 02m2 stops
$2,171
Find Deal
Wed, Jan 1 - Fri, Jan 3
3:50 pm - 6:10 pmSTL-KEF
20h 20m3 stops
7:35 am - 11:30 amKEF-STL
33h 55m3 stops
$2,737
Find Deal
Wed, Jan 1 - Fri, Jan 3
3:53 pm - 6:15 amSTL-KEF
32h 22m1 stop
4:55 pm - 8:13 amKEF-STL
21h 18m1 stop
$2,750
Find Deal
Wed, Jan 1 - Fri, Jan 3
12:15 pm - 6:40 amSTL-KEF
12h 25m2 stops
12:45 am - 1:55 pmKEF-STL
19h 10m2 stops
$3,150
Find Deal
Wed, Jan 1 - Thu, Jan 2
8:00 am - 2:10 pmSTL-KEF
24h 10m3 stops
12:45 am - 1:55 pmKEF-STL
19h 10m2 stops
$3,457
Find Deal
Wed, Jan 1 - Thu, Jan 2

Scandinavian Airlines flights from St. Louis to Reykjavik Keflavik Intl Airport

Our best Scandinavian Airlines deals on St. Louis to Reykjavik Keflavik Intl Airport flight tickets
Scandinavian Airlines
Jan 19
STL10:59 amLambert-St Louis
30h 21m
2 stops
KEF11:20 pmReykjavik Keflavik Intl
Jan 26
KEF3:40 pmReykjavik Keflavik Intl
37h 57m
2 stops
STL11:37 pmLambert-St Louis
Scandinavian Airlines
Jan 18
STL10:59 amLambert-St Louis
30h 21m
2 stops
KEF11:20 pmReykjavik Keflavik Intl
Jan 26
KEF7:35 amReykjavik Keflavik Intl
22h 03m
2 stops
STL11:38 pmLambert-St Louis

British Airways flights from St. Louis to Reykjavik Keflavik Intl Airport

Our best British Airways deals on St. Louis to Reykjavik Keflavik Intl Airport flight tickets
British Airways
Mar 10
STL4:26 pmLambert-St Louis
37h 24m
2 stops
KEF10:50 amReykjavik Keflavik Intl
Mar 17
KEF10:00 amReykjavik Keflavik Intl
38h 25m
2 stops
STL7:25 pmLambert-St Louis
British Airways
Jan 28
STL6:00 pmLambert-St Louis
34h 45m
2 stops
KEF10:45 amReykjavik Keflavik Intl
Feb 4
KEF11:45 amReykjavik Keflavik Intl
40h 24m
2 stops
STL10:09 pmLambert-St Louis
British Airways
Jan 27
STL6:00 pmLambert-St Louis
58h 45m
2 stops
KEF10:45 amReykjavik Keflavik Intl
Feb 3
KEF11:45 amReykjavik Keflavik Intl
40h 24m
2 stops
STL10:09 pmLambert-St Louis

See travel insights to Reykjavik from

How to get the cheapest flight ticket from St. Louis 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 month to fly to Reykjavik Keflavik Intl Airport?

The month of December is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from St. Louis, with most prices found around $778. If you’re not able to fly to Reykjavik Keflavik Intl Airport in December, then April is your next best option. Flight prices from St. Louis to Reykjavik Keflavik Intl Airport during April average around $781.

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

The cheapest day to depart from St. Louis to Reykjavik Keflavik Intl Airport is on a Wednesday when prices can be found for as low as $792. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Thursday, with ticket prices averaging around $1,102.

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 in the morning when flights can be purchased for as low as $835. Flights in the afternoon are often more expensive with an average ticket price of $1,022.

When to book flights from St. Louis to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis 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 St. Louis to Reykjavik Keflavik Intl Airport (STL to KEF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Reykjavik Keflavik Intl Airport

Best Price Found

$625

Fastest flight time

9h 59m

Direct flights

None
The best flight deal from St. Louis to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $625
The fastest flight from St. Louis to Reykjavik Keflavik Intl Airport takes 9h 59m
There are no direct flights from St. Louis to Reykjavik Keflavik Intl Airport. Popular non-direct route for this connection is Lambert-St Louis Airport - Reykjavik Keflavik Intl Airport.

  • How far is Lambert-St Louis to Reykjavik Keflavik Intl by plane?

    A flight from Lambert-St Louis to Reykjavik Keflavik Intl will travel around 3192.8 mi. Typically, this will take 9h 59m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Reykjavik Keflavik Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Reykjavik Keflavik Intl Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis 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 Lambert-St Louis Airport to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The necessary travel and health documents for your Reykjavik Keflavik Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Reykjavik Keflavik Intl Airport?


Best airlines flying from St. Louis to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from St. Louis to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $568Free CancellationRating
7.0
8,464 reviews
Search Air Canada flights
United AirlinesPriceFrom $595Free CancellationRating
7.4
8,984 reviews
Search United Airlines flights
DeltaPriceFrom $666Free CancellationRating
8.0
8,540 reviews
Search Delta flights
KLMPriceFrom $675Free CancellationRating
7.8
1,339 reviews
Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Reykjavik?

Finding the right flight to Reykjavik from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Reykjavik quick and easy, saving you time and money.

Can I find flights from St. Louis to Reykjavik with flexible booking policies on momondo?

Flights from St. Louis 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 St. Louis to Reykjavik?

Once all potential St. Louis to Reykjavik flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Reykjavik right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Reykjavik flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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