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Cheap flights from St. Louis to Reykjavik from $462

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 5/26. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Reykjavik

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
12:10 pm - 7:00 am
STL
-
KEF
13h 50m
1 stop
KLM Logo
9:30 am - 2:31 pm
KEF
-
STL
10h 01m
1 stop
$856KLM
Mon, Aug 24 - Thu, Sep 3
KLM Logo
11:51 am - 7:40 am
STL
-
KEF
14h 49m
2 stops
KLM Logo
11:25 am - 11:37 pm
KEF
-
STL
17h 12m
2 stops
$860KLM
Sun, Aug 23 - Fri, Sep 4
United Airlines Logo
5:32 pm - 8:45 am
STL
-
KEF
34h 13m
2 stops
United Airlines Logo
10:00 am - 3:38 pm
KEF
-
STL
34h 38m
2 stops
$913United Airlines
Sat, Aug 15 - Wed, Aug 26
United Airlines Logo
6:55 pm - 7:55 am
STL
-
KEF
32h 00m
2 stops
United Airlines Logo
10:00 am - 8:07 pm
KEF
-
STL
15h 07m
1 stop
$926United Airlines
Sat, Aug 15 - Wed, Aug 26
United Airlines Logo
5:32 pm - 8:45 am
STL
-
KEF
34h 13m
2 stops
United Airlines Logo
10:00 am - 8:07 pm
KEF
-
STL
15h 07m
1 stop
$927United Airlines
Sat, Aug 15 - Wed, Aug 26
United Airlines Logo
5:18 pm - 8:45 am
STL
-
KEF
34h 27m
2 stops
United Airlines Logo
9:15 am - 11:45 pm
KEF
-
STL
43h 30m
2 stops
$929United Airlines
Tue, Oct 6 - Fri, Oct 16
Air Canada Logo
2:40 pm - 7:55 am
STL
-
KEF
36h 15m
2 stops
Air Canada Logo
10:00 am - 8:07 pm
KEF
-
STL
15h 07m
1 stop
$930Air Canada
Sat, Aug 15 - Wed, Aug 26
United Airlines Logo
4:52 pm - 7:00 am
STL
-
KEF
9h 08m
1 stop
United Airlines Logo
9:15 am - 2:18 pm
KEF
-
STL
34h 03m
2 stops
$934United Airlines
Tue, Sep 1 - Wed, Sep 30
United Airlines Logo
6:55 pm - 8:50 am
STL
-
KEF
8h 55m
1 stop
United Airlines Logo
9:15 am - 4:26 pm
KEF
-
STL
36h 11m
2 stops
$935United Airlines
Tue, Sep 1 - Wed, Sep 30
United Airlines Logo
5:32 pm - 8:45 am
STL
-
KEF
34h 13m
2 stops
United Airlines Logo
9:15 am - 4:26 pm
KEF
-
STL
36h 11m
2 stops
$938United Airlines
Tue, Sep 1 - Wed, Sep 30

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United Airlines flights from St. Louis to Reykjavik

Our best United Airlines deals on St. Louis to Reykjavik flight tickets
United Airlines
Aug 15
STL5:32 pmLambert-St Louis
34h 13m
2 stops
KEF8:45 amReykjavik Keflavik Intl
Aug 26
KEF10:00 amReykjavik Keflavik Intl
34h 38m
2 stops
STL3:38 pmLambert-St Louis
$913
United Airlines
Aug 15
STL6:55 pmLambert-St Louis
32h 00m
2 stops
KEF7:55 amReykjavik Keflavik Intl
Aug 26
KEF10:00 amReykjavik Keflavik Intl
15h 07m
1 stop
STL8:07 pmLambert-St Louis
$926
United Airlines
Aug 15
STL5:32 pmLambert-St Louis
34h 13m
2 stops
KEF8:45 amReykjavik Keflavik Intl
Aug 26
KEF10:00 amReykjavik Keflavik Intl
15h 07m
1 stop
STL8:07 pmLambert-St Louis
$927

KLM flights from St. Louis to Reykjavik

Our best KLM deals on St. Louis to Reykjavik flight tickets
KLM
Aug 24
STL12:10 pmLambert-St Louis
13h 50m
1 stop
KEF7:00 amReykjavik Keflavik Intl
Sep 3
KEF9:30 amReykjavik Keflavik Intl
10h 01m
1 stop
STL2:31 pmLambert-St Louis
$856
KLM
Aug 23
STL11:51 amLambert-St Louis
14h 49m
2 stops
KEF7:40 amReykjavik Keflavik Intl
Sep 4
KEF11:25 amReykjavik Keflavik Intl
17h 12m
2 stops
STL11:37 pmLambert-St Louis
$860
KLM
Sep 7
STL12:10 pmLambert-St Louis
13h 50m
1 stop
KEF7:00 amReykjavik Keflavik Intl
Sep 14
KEF9:30 amReykjavik Keflavik Intl
10h 01m
1 stop
STL2:31 pmLambert-St Louis
$1,006

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 April 25, 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
Quickest round-trip

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 8/24

12:10 pm-7:00 am

1 stop13h 50m

Reykjavik Keflavik Intl

Thu 9/3

9:30 am-2:31 pm

1 stop10h 01m

$856

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 8/23

11:51 am-7:40 am

2 stops14h 49m

Reykjavik Keflavik Intl

Fri 9/4

11:25 am-11:37 pm

2 stops17h 12m

$860

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

5:32 pm-8:45 am

2 stops34h 13m

Reykjavik Keflavik Intl

Wed 8/26

10:00 am-3:38 pm

2 stops34h 38m

$913

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

6:55 pm-7:55 am

2 stops32h 00m

Reykjavik Keflavik Intl

Wed 8/26

10:00 am-8:07 pm

1 stop15h 07m

$926

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

5:32 pm-8:45 am

2 stops34h 13m

Reykjavik Keflavik Intl

Wed 8/26

10:00 am-8:07 pm

1 stop15h 07m

$927

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 10/6

5:18 pm-8:45 am

2 stops34h 27m

Reykjavik Keflavik Intl

Fri 10/16

9:15 am-11:45 pm

2 stops43h 30m

$929

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 8/15

2:40 pm-7:55 am

2 stops36h 15m

Reykjavik Keflavik Intl

Wed 8/26

10:00 am-8:07 pm

1 stop15h 07m

$930

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 9/1

4:52 pm-7:00 am

1 stop9h 08m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-2:18 pm

2 stops34h 03m

$934

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 9/1

6:55 pm-8:50 am

1 stop8h 55m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-4:26 pm

2 stops36h 11m

$935

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 9/1

5:32 pm-8:45 am

2 stops34h 13m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-4:26 pm

2 stops36h 11m

$938

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 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?

KLM is the most popular carrier 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 40% 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

9h 08m

Direct flights

None
The fastest flight from St. Louis to Reykjavik takes 9h 08m
There are no direct flights from St. Louis to Reykjavik. There are no popular flight routes from St. Louis to Reykjavik.
Search flight deals

Frequently asked questions about flying from St. Louis to Reykjavik

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

    Reykjavik is 3212.7 mi away from Lambert-St Louis. Typically, this will take 9h 08m 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
9,648 reviews
Search United Airlines flights
Air CanadaPriceFrom $604Free CancellationRating
7.1
10,964 reviews
Search Air Canada flights
DeltaPriceFrom $636Free CancellationRating
7.9
8,455 reviews
Search Delta flights
KLMPriceFrom $756Free CancellationRating
7.8
1,508 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