Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Reykjavik Keflavik Intl Airport to St. Louis from $504

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Reykjavik Keflavik Intl Airport to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:30 am - 10:59 pmKEF  Reykjavik Keflavik Intl-STL Lambert-St Louis
16h 29m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
United Airlines Logo
5:30 pm - 8:50 amSTL  Lambert-St Louis-KEF Reykjavik Keflavik Intl
10h 20m1 stop Chicago O'Hare Intl
$901United Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
9:15 am - 6:41 pmKEF  Reykjavik Keflavik Intl-STL Lambert-St Louis
14h 26m1 stop Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
3:30 pm - 11:25 pmSTL  Lambert-St Louis-KEF Reykjavik Keflavik Intl
26h 55m1 stop Frankfurt am Main
$1,084Multiple Airlines
Sun, Oct 4 - Sun, Oct 11
United Airlines Logo
9:15 am - 12:13 pmKEF  Reykjavik Keflavik Intl-STL Lambert-St Louis
31h 58m3 stops Montreal Pierre Elliott Trudeau Intl Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
6:15 am - 8:50 amSTL  Lambert-St Louis-KEF Reykjavik Keflavik Intl
21h 35m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$1,120United Airlines
Sun, Oct 4 - Sun, Oct 11
Multiple Airlines Logo
6:40 pm - 1:25 pmKEF  Reykjavik Keflavik Intl-STL Lambert-St Louis
23h 45m2 stops Milan Malpensa Frankfurt am Main
Multiple Airlines Logo
3:30 pm - 12:10 amSTL  Lambert-St Louis-KEF Reykjavik Keflavik Intl
27h 40m3 stops Frankfurt am Main Milan Linate Munich Franz Josef Strauss
$1,440Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
10:30 am - 1:25 pmKEF  Reykjavik Keflavik Intl-STL Lambert-St Louis
31h 55m3 stops Kastrup Copenhagen Milan Malpensa Frankfurt am Main
Multiple Airlines Logo
3:30 pm - 12:10 amSTL  Lambert-St Louis-KEF Reykjavik Keflavik Intl
27h 40m3 stops Frankfurt am Main Milan Linate Munich Franz Josef Strauss
$1,531Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
10:30 am - 2:00 pmKEF  Reykjavik Keflavik Intl-STL Lambert-St Louis
32h 30m3 stops Kastrup Copenhagen London Heathrow Toronto Pearson Intl
Multiple Airlines Logo
8:55 am - 3:35 pmSTL  Lambert-St Louis-KEF Reykjavik Keflavik Intl
25h 40m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle
$1,593Multiple Airlines
Sun, Oct 4 - Sun, Oct 11

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Our best United Airlines deals on Reykjavik Keflavik Intl Airport to St. Louis flight tickets
United Airlines
Sep 14
KEF11:30 amReykjavik Keflavik Intl
15h 06m
2 stops
STL9:36 pmLambert-St Louis
Sep 21
STL1:00 pmLambert-St Louis
13h 00m
2 stops
KEF7:00 amReykjavik Keflavik Intl
$901
United Airlines
Oct 4
KEF9:15 amReykjavik Keflavik Intl
31h 58m
3 stops
STL12:13 pmLambert-St Louis
Oct 11
STL6:15 amLambert-St Louis
21h 35m
2 stops
KEF8:50 amReykjavik Keflavik Intl
$1,120

momondo Fare Finder

 
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Mon 9/14

11:30 am-10:59 pm

2 stops16h 29m

Lambert-St Louis

Mon 9/21

5:30 pm-8:50 am

1 stop10h 20m

$901

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Sun 10/4

9:15 am-6:41 pm

1 stop14h 26m

Lambert-St Louis

Sun 10/11

3:30 pm-11:25 pm

1 stop26h 55m

$1,084

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Sun 10/4

9:15 am-12:13 pm

3 stops31h 58m

Lambert-St Louis

Sun 10/11

6:15 am-8:50 am

2 stops21h 35m

$1,120

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Mon 9/14

6:40 pm-1:25 pm

2 stops23h 45m

Lambert-St Louis

Mon 9/21

3:30 pm-12:10 am

3 stops27h 40m

$1,440

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Mon 9/14

10:30 am-1:25 pm

3 stops31h 55m

Lambert-St Louis

Mon 9/21

3:30 pm-12:10 am

3 stops27h 40m

$1,531

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Sun 10/4

10:30 am-2:00 pm

3 stops32h 30m

Lambert-St Louis

Sun 10/11

8:55 am-3:35 pm

3 stops25h 40m

$1,593
Cheapest one-way

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Wed 11/11

2:20 pm-7:39 pm

2 stops35h 19m

$504

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Wed 11/11

8:45 pm-11:16 pm

3 stops56h 31m

$548
Quickest one-way

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Wed 9/30

5:00 pm-9:35 am

3 stops21h 35m

$600

ReykjavikSt. Louis

KEF Reykjavik Keflavik Intl - STL Lambert-St Louis

KEFSTL

Reykjavik Keflavik Intl

Wed 9/23

5:00 pm-9:35 am

3 stops21h 35m

$602

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

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

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

Can stopping save me money on Reykjavik Keflavik Intl Airport to St. Louis flights?

You could potentially save up to 77% on your flight if you consider stops on a Reykjavik Keflavik Intl Airport to St. Louis flight.

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

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

Cheap Reykjavik Keflavik Intl Airport to St. Louis (KEF to STL) flight deals and tips

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

Best Price Found

$504

Fastest flight time

14h 26m

Direct flights

None
The best one-way flight to St. Louis from Reykjavik Keflavik Intl Airport in the past 72 hours is $504. The best round-trip flight deal from Reykjavik Keflavik Intl Airport to St. Louis found on momondo in the last 72 hours is $901.
The fastest flight from Reykjavik Keflavik Intl Airport to St. Louis takes 14h 26m
There are no direct flights from Reykjavik Keflavik Intl Airport to St. Louis. There are no popular flight routes from Reykjavik Keflavik Intl Airport to St. Louis.
Search flight deals

Frequently asked questions about flying from Reykjavik Keflavik Intl Airport to St. Louis

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

    The straight-line distance from Reykjavik Keflavik Intl to Lambert-St Louis is 3192.8 mi. Typically, this will take 14h 26m by plane in normal conditions.

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

    Prices for flights from Reykjavik Keflavik Intl Airport to Lambert-St Louis Airport are refreshed on a daily basis.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Reykjavik Keflavik Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Maryland Heights
St. Peters
Hermann
Collinsville
Florissant
Alton
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

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

It is quick and easy to find Reykjavik to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Reykjavik with this policy.

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

Once you have performed a search for Reykjavik to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Reykjavik to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 9/19
Sat 9/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States