Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Iceland from $468

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 Iceland departing on 11/30. 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.

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

Find the cheapest flights from St. Louis to Iceland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
5:18 pm - 11:30 pmSTL-KEF
25h 12m2 stops
Lufthansa Logo
2:20 pm - 1:30 pmKEF-STL
28h 10m1 stop
$749Lufthansa
Find Deal
Tue, May 5 - Tue, May 12
Lufthansa Logo
5:18 pm - 11:30 pmSTL-KEF
25h 12m2 stops
Lufthansa Logo
2:20 pm - 7:48 pmKEF-STL
34h 28m2 stops
$750Lufthansa
Find Deal
Tue, May 5 - Tue, May 12
Lufthansa Logo
5:18 pm - 11:30 pmSTL-KEF
25h 12m2 stops
Lufthansa Logo
12:25 am - 9:04 pmKEF-STL
25h 39m2 stops
$761Lufthansa
Find Deal
Tue, May 5 - Mon, May 11
Multiple Airlines Logo
10:01 pm - 6:05 amSTL-KEF
26h 04m2 stops
Multiple Airlines Logo
4:55 pm - 10:02 amKEF-STL
23h 07m1 stop
$780Multiple Airlines
Find Deal
Thu, Feb 5 - Thu, Feb 12
Scandinavian Airlines Logo
1:57 pm - 3:25 pmSTL-KEF
19h 28m2 stops
Scandinavian Airlines Logo
11:30 am - 8:24 amKEF-STL
26h 54m2 stops
$827Scandinavian Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Scandinavian Airlines Logo
11:55 am - 11:20 pmSTL-KEF
29h 25m2 stops
Scandinavian Airlines Logo
3:40 pm - 11:38 pmKEF-STL
37h 58m2 stops
$856Scandinavian Airlines
Find Deal
Mon, Mar 2 - Fri, Mar 6
Scandinavian Airlines Logo
11:40 am - 10:45 amSTL-KEF
41h 05m2 stops
Scandinavian Airlines Logo
11:30 am - 8:24 amKEF-STL
26h 54m2 stops
$868Scandinavian Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Scandinavian Airlines Logo
1:57 pm - 10:45 amSTL-KEF
38h 48m2 stops
Scandinavian Airlines Logo
11:30 am - 8:24 amKEF-STL
26h 54m2 stops
$870Scandinavian Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Scandinavian Airlines Logo
5:00 pm - 11:50 pmSTL-KEF
49h 50m2 stops
Scandinavian Airlines Logo
10:30 am - 11:40 pmKEF-STL
42h 10m2 stops
$948Scandinavian Airlines
Find Deal
Sat, Mar 28 - Wed, Apr 1
Multiple Airlines Logo
8:30 am - 6:15 amSTL-KEF
15h 45m1 stop
Multiple Airlines Logo
4:45 pm - 7:05 amKEF-STL
20h 20m1 stop
$956Multiple Airlines
Find Deal
Wed, Dec 24 - Sun, Dec 28

Scandinavian Airlines flights from St. Louis to Iceland

Our best Scandinavian Airlines deals on St. Louis to Iceland flight tickets
Scandinavian Airlines
Dec 8
STL1:57 pmLambert-St Louis
19h 28m
2 stops
KEF3:25 pmReykjavik Keflavik Intl
Dec 15
KEF11:30 amReykjavik Keflavik Intl
26h 54m
2 stops
STL8:24 amLambert-St Louis
$827
Find similar
Scandinavian Airlines
Mar 2
STL11:55 amLambert-St Louis
29h 25m
2 stops
KEF11:20 pmReykjavik Keflavik Intl
Mar 6
KEF3:40 pmReykjavik Keflavik Intl
37h 58m
2 stops
STL11:38 pmLambert-St Louis
$856
Find similar
Scandinavian Airlines
Dec 8
STL1:57 pmLambert-St Louis
38h 48m
2 stops
KEF10:45 amReykjavik Keflavik Intl
Dec 15
KEF11:30 amReykjavik Keflavik Intl
26h 54m
2 stops
STL8:24 amLambert-St Louis
$870
Find similar

Lufthansa flights from St. Louis to Iceland

Our best Lufthansa deals on St. Louis to Iceland flight tickets
Lufthansa
May 5
STL5:18 pmLambert-St Louis
25h 12m
2 stops
KEF11:30 pmReykjavik Keflavik Intl
May 12
KEF2:20 pmReykjavik Keflavik Intl
28h 10m
1 stop
STL1:30 pmLambert-St Louis
$749
Find similar
Lufthansa
May 5
STL5:18 pmLambert-St Louis
25h 12m
2 stops
KEF11:30 pmReykjavik Keflavik Intl
May 12
KEF2:20 pmReykjavik Keflavik Intl
34h 28m
2 stops
STL7:48 pmLambert-St Louis
$750
Find similar
Lufthansa
May 5
STL5:18 pmLambert-St Louis
25h 12m
2 stops
KEF11:30 pmReykjavik Keflavik Intl
May 11
KEF12:25 amReykjavik Keflavik Intl
25h 39m
2 stops
STL9:04 pmLambert-St Louis
$761
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Iceland 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 November 18, 2025.
Use the filters below to find and compare flights from St. Louis to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 5/5

5:18 pm-11:30 pm

2 stops25h 12m

Reykjavik Keflavik Intl

Tue 5/12

2:20 pm-1:30 pm

1 stop28h 10m

$749

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 5/5

5:18 pm-11:30 pm

2 stops25h 12m

Reykjavik Keflavik Intl

Tue 5/12

2:20 pm-7:48 pm

2 stops34h 28m

$750

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 5/5

5:18 pm-11:30 pm

2 stops25h 12m

Reykjavik Keflavik Intl

Mon 5/11

12:25 am-9:04 pm

2 stops25h 39m

$761

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 2/5

10:01 pm-6:05 am

2 stops26h 04m

Reykjavik Keflavik Intl

Thu 2/12

4:55 pm-10:02 am

1 stop23h 07m

$780

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 12/8

1:57 pm-3:25 pm

2 stops19h 28m

Reykjavik Keflavik Intl

Mon 12/15

11:30 am-8:24 am

2 stops26h 54m

$827

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 3/2

11:55 am-11:20 pm

2 stops29h 25m

Reykjavik Keflavik Intl

Fri 3/6

3:40 pm-11:38 pm

2 stops37h 58m

$856

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 12/8

11:40 am-10:45 am

2 stops41h 05m

Reykjavik Keflavik Intl

Mon 12/15

11:30 am-8:24 am

2 stops26h 54m

$868

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 12/8

1:57 pm-10:45 am

2 stops38h 48m

Reykjavik Keflavik Intl

Mon 12/15

11:30 am-8:24 am

2 stops26h 54m

$870

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sat 3/28

5:00 pm-11:50 pm

2 stops49h 50m

Reykjavik Keflavik Intl

Wed 4/1

10:30 am-11:40 pm

2 stops42h 10m

$948

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 12/24

8:30 am-6:15 am

1 stop15h 45m

Reykjavik Keflavik Intl

Sun 12/28

4:45 pm-7:05 am

1 stop20h 20m

$956

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Iceland from

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

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 day to depart on your flight to Iceland?

The cheapest day to depart from St. Louis to Iceland is on a Tuesday when prices can be found for as low as $807. Flights from St. Louis to Iceland on a Thursday will generally be more expensive and average around $1,216. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Iceland?

According to our data, the cheapest time of day to fly to Iceland is in the morning. momondo users have found flights departing from St. Louis to Iceland in the morning for as low as $846. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $1,040. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap St. Louis to Iceland flight deals and tips

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

Direct flights

None
There are no direct flights from St. Louis to Iceland. There are no popular flight routes from St. Louis to Iceland.
Search flight deals

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Iceland.

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

    The travel and health documents required for your trip to Iceland 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 Iceland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from St. Louis to Iceland

Compare and see reviews for airlines that fly from St. Louis to Iceland with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $566Free CancellationRating
7.1
10,459 reviews
Search Air Canada flights
United AirlinesPriceFrom $595Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
DeltaPriceFrom $636Free CancellationRating
7.9
8,008 reviews
Search Delta flights
KLMPriceFrom $828Free CancellationRating
7.7
1,411 reviews
Search KLM flights

Why use momondo?

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

Finding the right flight to Iceland 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 Iceland quick and easy, saving you time and money.

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

Flights from St. Louis to Iceland 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 Iceland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Iceland.

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

Price alerts on flights to Iceland from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Iceland 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
Thu 12/18
Thu 12/25
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Iceland

Popular cities in Iceland

Popular flights according to clicks in the last 7 days on momondo
Flights to Reykjavik
Flights to Akureyrifrom $726
Flights to Egilsstaðir