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Cheap flights from St. Louis to Reykjavik from $560

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Reykjavik departing on 4/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from St. Louis to Reykjavik

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:42 am - 9:30 am
STL
-
KEF
16h 48m
2 stops
Multiple Airlines Logo
11:25 am - 3:32 pm
KEF
-
STL
33h 07m
2 stops
$660Multiple Airlines
Sun, Apr 26 - Sun, May 3
KLM Logo
5:30 pm - 7:40 am
STL
-
KEF
9h 10m
1 stop
KLM Logo
8:50 am - 4:49 pm
KEF
-
STL
12h 59m
1 stop
$675KLM
Sat, Aug 15 - Wed, Aug 26
Multiple Airlines Logo
5:30 pm - 7:40 am
STL
-
KEF
9h 10m
1 stop
Multiple Airlines Logo
8:50 am - 6:02 pm
KEF
-
STL
14h 12m
2 stops
$679Multiple Airlines
Sat, Aug 15 - Wed, Aug 26
KLM Logo
11:22 am - 7:40 am
STL
-
KEF
15h 18m
1 stop
KLM Logo
8:50 am - 5:16 pm
KEF
-
STL
13h 26m
1 stop
$704KLM
Mon, May 11 - Tue, May 19
Multiple Airlines Logo
4:20 pm - 9:30 am
STL
-
KEF
12h 10m
1 stop
Multiple Airlines Logo
11:25 am - 5:05 pm
KEF
-
STL
10h 40m
1 stop
$705Multiple Airlines
Tue, May 12 - Wed, May 20
KLM Logo
1:27 pm - 9:30 am
STL
-
KEF
15h 03m
2 stops
KLM Logo
11:25 am - 9:29 pm
KEF
-
STL
15h 04m
2 stops
$709KLM
Tue, May 12 - Wed, May 20
KLM Logo
10:15 am - 6:20 am
STL
-
KEF
15h 05m
1 stop
KLM Logo
9:30 am - 11:21 pm
KEF
-
STL
18h 51m
1 stop
$715KLM
Sun, May 10 - Sat, May 23
Virgin Atlantic Logo
1:56 pm - 9:30 am
STL
-
KEF
14h 34m
2 stops
Virgin Atlantic Logo
8:50 am - 11:21 pm
KEF
-
STL
19h 31m
2 stops
$719Virgin Atlantic
Sun, May 10 - Sat, May 23
KLM Logo
3:50 pm - 7:40 am
STL
-
KEF
10h 50m
1 stop
KLM Logo
8:50 am - 4:49 pm
KEF
-
STL
12h 59m
1 stop
$725KLM
Sat, Aug 15 - Wed, Aug 26
Delta Logo
6:48 am - 9:30 am
STL
-
KEF
21h 42m
2 stops
Delta Logo
11:25 am - 8:30 am
KEF
-
STL
26h 05m
2 stops
$729Delta
Sat, Apr 25 - Sat, May 2

KLM flights from St. Louis to Reykjavik

Our best KLM deals on St. Louis to Reykjavik flight tickets
KLM
Aug 15
STL5:30 pmLambert-St Louis
9h 10m
1 stop
KEF7:40 amReykjavik Keflavik Intl
Aug 26
KEF8:50 amReykjavik Keflavik Intl
12h 59m
1 stop
STL4:49 pmLambert-St Louis
$675
KLM
May 11
STL11:22 amLambert-St Louis
15h 18m
1 stop
KEF7:40 amReykjavik Keflavik Intl
May 19
KEF8:50 amReykjavik Keflavik Intl
13h 26m
1 stop
STL5:16 pmLambert-St Louis
$704
KLM
May 12
STL1:27 pmLambert-St Louis
15h 03m
2 stops
KEF9:30 amReykjavik Keflavik Intl
May 20
KEF11:25 amReykjavik Keflavik Intl
15h 04m
2 stops
STL9:29 pmLambert-St Louis
$709

Virgin Atlantic flights from St. Louis to Reykjavik

Our best Virgin Atlantic deals on St. Louis to Reykjavik flight tickets
Virgin Atlantic
May 10
STL1:56 pmLambert-St Louis
14h 34m
2 stops
KEF9:30 amReykjavik Keflavik Intl
May 23
KEF8:50 amReykjavik Keflavik Intl
19h 31m
2 stops
STL11:21 pmLambert-St Louis
$719
Virgin Atlantic
May 14
STL1:27 pmLambert-St Louis
15h 03m
2 stops
KEF9:30 amReykjavik Keflavik Intl
May 21
KEF8:50 amReykjavik Keflavik Intl
17h 39m
2 stops
STL9:29 pmLambert-St Louis
$848

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Reykjavik 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 March 13, 2026.
Use the filters below to find and compare flights from St. Louis to Reykjavik that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 4/26

11:42 am-9:30 am

2 stops16h 48m

Reykjavik Keflavik Intl

Sun 5/3

11:25 am-3:32 pm

2 stops33h 07m

$660
Quickest round-trip

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

5:30 pm-7:40 am

1 stop9h 10m

Reykjavik Keflavik Intl

Wed 8/26

8:50 am-4:49 pm

1 stop12h 59m

$675

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

5:30 pm-7:40 am

1 stop9h 10m

Reykjavik Keflavik Intl

Wed 8/26

8:50 am-6:02 pm

2 stops14h 12m

$679

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/11

11:22 am-7:40 am

1 stop15h 18m

Reykjavik Keflavik Intl

Tue 5/19

8:50 am-5:16 pm

1 stop13h 26m

$704

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 5/12

4:20 pm-9:30 am

1 stop12h 10m

Reykjavik Keflavik Intl

Wed 5/20

11:25 am-5:05 pm

1 stop10h 40m

$705

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 5/12

1:27 pm-9:30 am

2 stops15h 03m

Reykjavik Keflavik Intl

Wed 5/20

11:25 am-9:29 pm

2 stops15h 04m

$709

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 5/10

10:15 am-6:20 am

1 stop15h 05m

Reykjavik Keflavik Intl

Sat 5/23

9:30 am-11:21 pm

1 stop18h 51m

$715

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 5/10

1:56 pm-9:30 am

2 stops14h 34m

Reykjavik Keflavik Intl

Sat 5/23

8:50 am-11:21 pm

2 stops19h 31m

$719

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

3:50 pm-7:40 am

1 stop10h 50m

Reykjavik Keflavik Intl

Wed 8/26

8:50 am-4:49 pm

1 stop12h 59m

$725

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 4/25

6:48 am-9:30 am

2 stops21h 42m

Reykjavik Keflavik Intl

Sat 5/2

11:25 am-8:30 am

2 stops26h 05m

$729

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Reykjavik from

How to get the cheapest flight ticket from St. Louis to Reykjavik

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 airline that flies from Lambert-St Louis to Reykjavik?

Virgin Atlantic and Lufthansa are the most popular carriers operating from Lambert-St Louis to Reykjavik

What airlines fly to Reykjavik?

United Airlines, Delta and KLM are the top three most popular airlines that fly to Reykjavik from St. Louis according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Reykjavik. Keep in mind that there are 4 different airlines that fly to Reykjavik on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Reykjavik

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Reykjavik according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Reykjavik (STL to REK) flight deals and tips

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

Fastest flight time

12h 17m

Direct flights

None
The fastest flight from St. Louis to Reykjavik takes 12h 17m
There are no direct flights from St. Louis to Reykjavik. There are no popular flight routes from St. Louis to Reykjavik.
Search flight deals

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

    Reykjavik is 3212.7 mi away from Lambert-St Louis. Typically, this will take 12h 17m by plane in normal conditions.

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

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

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

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

    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.

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

    The necessary travel and health documents for your Reykjavik 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?

Best airlines flying from St. Louis to Reykjavik

Compare and see reviews for airlines that fly from St. Louis to Reykjavik with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,421 reviews
Search United Airlines flights
Air CanadaPriceFrom $604Free CancellationRating
7.1
10,800 reviews
Search Air Canada flights
DeltaPriceFrom $636Free CancellationRating
7.9
8,288 reviews
Search Delta flights
KLMPriceFrom $756Free CancellationRating
7.8
1,471 reviews
Search KLM flights

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Selfoss
Hella
Hveragerdi
Borgarnes
Kopavogur

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?

Yes. All flights to Reykjavik from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Reykjavik?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Reykjavik from St. Louis.

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

If you are not ready to book a flight from St. Louis to Reykjavik now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Reykjavik and let you know when they change.

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Find better results for your trip to Iceland

Fly into one of these airports located in Reykjavik

Airports listed have a maximum distance of 23.0 mi from Reykjavik
Reykjavik Keflavik Intl Airport
Reykjavik Domestic Airport