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Iceland

$427+ Cheap flights from Missouri to Iceland

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Missouri to Iceland

Cheapest flights from Missouri to Iceland
Explore the most affordable flight options available from Missouri to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Finnair deal was found by Cheapflights users on 10/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:20 pmSTL - KEF
2 stops37h 55mMultiple Airlines
Thu 12/119:45 amKEF - STL
2 stops30h 40mMultiple Airlines
Deal found 10/30$619
This KAYAK deal was found by Cheapflights users on 10/30. 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.
Fri 11/286:43 pmSTL - KEF
2 stops37h 37mLufthansa
Fri 12/53:25 pmKEF - STL
2 stops31h 38mLufthansa
Deal found 10/30$630
This KAYAK deal was found by Cheapflights users on 10/29. 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.
Mon 11/2411:36 amMCI - KEF
2 stops20h 44mLufthansa
Tue 12/23:20 pmKEF - MCI
2 stops32h 05mLufthansa
Deal found 10/29$640
This Finnair deal was found by Cheapflights users on 10/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:45 pmMCI - KEF
2 stops37h 30mFinnair
Sun 12/710:00 amKEF - MCI
2 stops39h 13mFinnair
Deal found 10/28$654
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/1911:37 amSTL - KEF
2 stops20h 38mMultiple Airlines
Tue 11/253:20 pmKEF - STL
2 stops32h 19mMultiple Airlines
Deal found 10/29$670
This Finnair deal was found by Cheapflights users on 10/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:20 pmSTL - KEF
2 stops37h 55mFinnair
Tue 11/1810:00 amKEF - STL
2 stops39h 30mFinnair
Deal found 10/27$692
This KAYAK deal was found by Cheapflights users on 10/28. 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.
Wed 11/123:50 pmSTL - KEF
2 stops16h 25mLufthansa
Tue 11/183:20 pmKEF - STL
1 stop28h 35mLufthansa
Deal found 10/28$695
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:54 amSTL - KEF
1 stop14h 21mMultiple Airlines
Mon 12/155:15 pmKEF - STL
1 stop35h 18mMultiple Airlines
Deal found 10/30$697
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:45 pmMCI - KEF
1 stop27h 20mMultiple Airlines
Mon 12/154:55 pmKEF - MCI
2 stops33h 49mMultiple Airlines
Deal found 10/30$799
This Finnair deal was found by Cheapflights users on 10/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:44 pmMCI - KEF
2 stops37h 16mMultiple Airlines
Tue 12/1611:50 amKEF - MCI
2 stops37h 23mMultiple Airlines
Deal found 10/30$853
This oojo deal was found by Cheapflights users on 10/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/810:35 amSGF - KEF
2 stops42h 15mBritish Airways
Mon 12/1511:50 amKEF - SGF
2 stops38h 58mBritish Airways
Deal found 10/30$978
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:01 pmMCI - KEF
2 stops29h 14mMultiple Airlines
Thu 12/185:00 pmKEF - MCI
2 stops30h 10mMultiple Airlines
Deal found 10/29$998

Cheap flight deals from Missouri to Iceland

Keep the following information in mind while searching for Missouri to Iceland flight deals. Data was last updated October 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$619
(Finnair)

One-way from

$427
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$807
Provider with most accurate pricing for Lambert-St Louis-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Reykjavik (REK) flights.
Search Deals
From Missouri to Iceland
Search Deals
One-way flight from Missouri to Iceland
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri 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, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Missouri to Iceland that are best for you.

Fly from

Missouri

Fly to

Iceland

Route

Depart

Return

Price

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Tue 12/2

1:45 pm-9:15 am

2 stops37h 30m

Reykjavik Keflavik Intl

Sun 12/7

10:00 am-7:13 pm

2 stops39h 13m

$654

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 11/19

11:37 am-2:15 pm

2 stops20h 38m

Reykjavik Keflavik Intl

Tue 11/25

3:20 pm-5:39 pm

2 stops32h 19m

$670

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 11/28

6:43 pm-2:20 pm

2 stops37h 37m

Reykjavik Keflavik Intl

Fri 12/5

3:25 pm-9:40 pm

2 stops36h 15m

$674

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 11/12

1:20 pm-9:15 am

2 stops37h 55m

Reykjavik Keflavik Intl

Tue 11/18

10:00 am-7:30 pm

2 stops39h 30m

$692

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 11/12

1:20 pm-9:15 am

2 stops37h 55m

Reykjavik Keflavik Intl

Tue 11/18

10:00 am-7:30 pm

2 stops39h 30m

$692

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 12/8

9:54 am-6:15 am

1 stop14h 21m

Reykjavik Keflavik Intl

Mon 12/15

5:15 pm-10:33 pm

1 stop35h 18m

$697

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Sun 3/22

3:22 pm-2:20 pm

2 stops41h 58m

Reykjavik Keflavik Intl

Mon 3/30

12:25 am-8:51 am

2 stops37h 26m

$707

JoplinReykjavik

JLN - KEF

JLNKEF

Joplin

Fri 4/3

7:40 am-12:55 pm

2 stops24h 15m

Reykjavik Keflavik Intl

Sat 4/18

12:25 am-11:14 pm

2 stops27h 49m

$710

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Wed 11/12

3:50 pm-2:15 pm

2 stops16h 25m

Reykjavik Keflavik Intl

Tue 11/18

3:20 pm-9:40 pm

2 stops36h 20m

$742

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 2/13

11:46 am-5:15 pm

2 stops23h 29m

Reykjavik Keflavik Intl

Sat 2/21

6:00 pm-7:26 pm

2 stops31h 26m

$760

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 23 results
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Best time to book a flight from Missouri to Iceland

Have a flexible travel schedule? Discover the best time to fly to Iceland from Missouri 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.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Iceland

What is the cheapest month to book a flight from Missouri to Iceland?

Currently, September is the cheapest month in which you can book a flight from Missouri to Iceland (average of $293). Flying from Missouri to Iceland in December is currently the most expensive (average of $1,356). 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 MO to IS?

Find hourly flight availability from Missouri to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 29% on flights from Missouri to Iceland by exploring options for tickets at noon.

Related info for your journey

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

  • How long is the flight from Missouri to Iceland?

    For as low as $654, Finnair can have you in Iceland from Missouri in 37h 30m. Airlines will cover a distance of 3291 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Missouri to Iceland that include hotel bookings?

    Yes. In addition to deals on Missouri to Iceland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Iceland?

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

  • Can I find deals for business class flights from Missouri to Iceland?

    Yes. Cheapflights offers flight deals from Missouri to Iceland 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 Missouri to Iceland?

    Currently, September is the cheapest month in which you can book a flight from Missouri to Iceland (average of $293). Flying from Missouri to Iceland in December is currently the most expensive (average of $1,356). 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 Missouri to Iceland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Missouri to Iceland

Discover the top 5 airlines that operate flights from Missouri to Iceland. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$370Average$969FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$566Average$672FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$595Average$929FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$615Average$769FlexibilityNo cancel feeOn-time70%
DeltaCheapest$636Average$1,055FlexibilityNo cancel feeOn-timeN/A

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