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$503+ Cheap flights from St. Louis (STL) to Reykjavik

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — REK
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from St. Louis to Reykjavik

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Reykjavik (IS1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Round-trip from

$651
(Expedia)
From Lambert-St Louis to Reykjavik
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Find flight deals from St. Louis to Reykjavik

Cheapest flights from St. Louis to Reykjavik
Explore the most affordable flight options available from St. Louis to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Booking.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/229:15 amSTL - KEF
2 stops41h 55mAir Canada
Thu 7/319:30 amKEF - STL
2 stops34h 46mAir Canada
Deal found 2/20$599
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1111:55 amSTL - KEF
2 stops41h 50mBritish Airways
Tue 3/1811:45 amKEF - STL
2 stops39h 33mBritish Airways
Deal found 2/19$651
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/306:30 amSTL - KEF
2 stops36h 05mMultiple Airlines
Sat 4/512:25 amKEF - STL
2 stops20h 22mMultiple Airlines
Deal found 2/20$717
This United deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:18 pmSTL - KEF
1 stop10h 12mUnited Airlines
Mon 9/112:00 pmKEF - STL
1 stop31h 18mUnited Airlines
Deal found 2/20$737
This Lufthansa deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:45 pmSTL - KEF
2 stops16h 30mLufthansa
Thu 12/113:10 pmKEF - STL
2 stops28h 45mLufthansa
Deal found 2/19$802
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:51 amSTL - KEF
2 stops16h 39mDelta
Sun 9/2811:25 amKEF - STL
2 stops14h 05mDelta
Deal found 2/20$851
This KLM deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/121:00 pmSTL - KEF
2 stops15h 30mKLM
Tue 5/208:50 amKEF - STL
1 stop13h 00mKLM
Deal found 2/19$933
This KAYAK deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/612:24 pmSTL - KEF
2 stops29h 56mAustrian Airlines
Fri 9/1912:10 amKEF - STL
2 stops26h 00mAustrian Airlines
Deal found 2/20$1,003
This StudentUniverse deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/911:06 amSTL - KEF
2 stops39h 54mFinnair
Sun 4/135:15 pmKEF - STL
2 stops33h 57mFinnair
Deal found 2/19$1,004

Find flights from St. Louis to Reykjavik within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

St. Louis

Fly to

Reykjavik

Route

Depart

Return

Price

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 7/22

9:15 am-8:10 am

2 stops41h 55m

Reykjavik Keflavik Intl

Thu 7/31

9:30 am-3:16 pm

2 stops34h 46m

$599

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 3/11

11:55 am-10:45 am

2 stops41h 50m

Reykjavik Keflavik Intl

Tue 3/18

11:45 am-10:18 pm

2 stops39h 33m

$651

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 3/30

6:30 am-11:35 pm

2 stops36h 05m

Reykjavik Keflavik Intl

Sat 4/5

12:25 am-3:47 pm

2 stops20h 22m

$717

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 7/30

9:50 am-8:35 am

2 stops17h 45m

Reykjavik Keflavik Intl

Tue 8/5

12:00 pm-10:45 pm

1 stop15h 45m

$737

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 3/30

3:30 pm-11:35 pm

1 stop27h 05m

Reykjavik Keflavik Intl

Sat 4/5

12:25 am-3:47 pm

2 stops44h 22m

$892

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/12

1:00 pm-9:30 am

2 stops15h 30m

Reykjavik Keflavik Intl

Tue 5/20

8:50 am-4:50 pm

1 stop13h 00m

$933

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 7/30

12:00 pm-9:30 am

1 stop16h 30m

Reykjavik Keflavik Intl

Thu 8/7

11:25 am-8:41 am

1 stop26h 16m

$982

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 4/9

11:06 am-8:00 am

2 stops39h 54m

Reykjavik Keflavik Intl

Sun 4/13

5:15 pm-10:12 pm

2 stops33h 57m

$1,004

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 5/22

1:10 pm-8:30 am

1 stop14h 20m

Reykjavik Keflavik Intl

Sun 5/25

12:10 am-9:25 pm

2 stops26h 15m

$1,240

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 3/21

4:45 pm-11:20 pm

2 stops25h 35m

Reykjavik Keflavik Intl

Fri 3/28

7:35 am-11:31 pm

2 stops20h 56m

$1,265

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 13 results
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Best time to book a flight from St. Louis to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Reykjavik

Get recent, data-driven insights about flights from St. Louis to Reykjavik including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Reykjavik?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Reykjavik (average of $328). Flying from St. Louis to Reykjavik in June is currently the most expensive (average of $657). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to KEF?

Find hourly flight availability from St. Louis to Reykjavik. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Reykjavik as you normally would.

Rainfall in Reykjavik by month

Plan your trip to Reykjavik by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik when rainfall is around 1.6 in.

Temperature in Reykjavik by month

Plan your trip to Reykjavik by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Reykjavik

Get insights into the airlines that provide service to Reykjavik. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Reykjavik. Reviews last updated February 20, 2025.
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,697 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

KLM
7.8
Good
1,333 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Finnair
7.6
Good
1,274 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,765 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Scandinavian Airlines
7.3
Good
1,325 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Reykjavik. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Reykjavik?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Reykjavik. You should not have trouble finding flights to Reykjavik from Lambert-St Louis; the airport handles an average of 0 outbound flights to Reykjavik per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the St. Louis airport to Reykjavik. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?

    Yes. In addition to deals on St. Louis to Reykjavik flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Reykjavik?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Reykjavik.

  • Can I find deals for business class flights from St. Louis to Reykjavik?

    Yes. Cheapflights offers flight deals from St. Louis to Reykjavik by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Reykjavik?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Reykjavik (average of $328). Flying from St. Louis to Reykjavik in June is currently the most expensive (average of $657). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Reykjavik

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Reykjavik

Discover the top 4 airlines that operate flights from St. Louis to Reykjavik. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$568Average$786FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$626Average$1,028FlexibilityNo cancel feeOn-time69%
DeltaCheapest$666Average$872FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$675Average$1,157FlexibilityNo cancel feeOn-time75%
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