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Keflavik Intl

$328+ Cheap flights from Missouri to Keflavik Intl (KEF)

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Missouri to Keflavik Intl

Keep the following information in mind while searching for Missouri to Keflavik Intl flight deals. Data was last updated April 17, 2025.

Round-trip from

$654
(Finnair)

One-way from

$391
(Mytrip)
From Missouri to Reykjavik Keflavik Intl
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One-way flight from Missouri to Reykjavik Keflavik Intl
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Find flight deals from Missouri to Keflavik Intl

Cheapest flights from Missouri to Keflavik Intl
Explore the most affordable flight options available from Missouri to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Finnair deal was found by Cheapflights users on 4/16. 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 8/124:59 pmMCI - KEF
2 stops18h 31mFinnair
Wed 8/205:15 pmKEF - MCI
2 stops35h 44mFinnair
Deal found 4/16$655
This United Airlines deal was found by Cheapflights users on 4/17. 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 7/308:00 amMCI - KEF
2 stops19h 10mUnited Airlines
Fri 8/299:30 amKEF - MCI
3 stops35h 33mUnited Airlines
Deal found 4/17$659
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Mon 8/258:10 amSTL - KEF
1 stop19h 20mUnited Airlines
Thu 9/410:00 amKEF - STL
2 stops29h 40mUnited Airlines
Deal found 4/16$666
This Air Canada deal was found by Cheapflights users on 4/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/610:00 amMCI - KEF
2 stops17h 10mAir Canada
Fri 8/159:50 amKEF - MCI
2 stops33h 36mAir Canada
Deal found 4/16$666
This United Airlines deal was found by Cheapflights users on 4/16. 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 8/68:05 amJLN - KEF
1 stop19h 25mUnited Airlines
Fri 8/159:50 amKEF - JLN
2 stops18h 50mUnited Airlines
Deal found 4/16$684
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Wed 5/145:46 amMCI - KEF
2 stops41h 59mMultiple Airlines
Wed 5/213:45 pmKEF - MCI
2 stops27h 05mMultiple Airlines
Deal found 4/16$686
This Delta deal was found by Cheapflights users on 4/16. 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.
Tue 8/510:20 amMCI - KEF
2 stops15h 40mDelta
Wed 8/138:50 amKEF - MCI
2 stops29h 37mDelta
Deal found 4/16$687
This KLM deal was found by Cheapflights users on 4/16. 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 5/1210:45 amSTL - KEF
1 stop14h 35mKLM
Tue 5/208:50 amKEF - STL
1 stop12h 57mKLM
Deal found 4/16$707
This KLM deal was found by Cheapflights users on 4/16. 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 5/123:40 pmSTL - KEF
2 stops12h 50mMultiple Airlines
Tue 5/208:50 amKEF - STL
1 stop12h 57mMultiple Airlines
Deal found 4/16$712
This KLM deal was found by Cheapflights users on 4/16. 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.
Tue 8/125:40 pmMCI - KEF
1 stop8h 20mKLM
Wed 8/208:50 amKEF - MCI
2 stops13h 38mKLM
Deal found 4/16$724
This Orbitz deal was found by Cheapflights users on 4/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/91:30 pmSTL - KEF
2 stops37h 45mAir Canada
Sun 8/179:30 amKEF - STL
1 stop15h 30mAir Canada
Deal found 4/17$734
This Delta deal was found by Cheapflights users on 4/16. 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 9/1410:45 amSTL - KEF
1 stop14h 35mDelta
Sun 9/288:50 amKEF - STL
1 stop9h 30mDelta
Deal found 4/16$765

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Keflavik Intl 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 April 17, 2025.
Use the filters below to find and compare flights from Missouri to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Missouri

Fly to

Keflavik Intl

Route

Depart

Return

Price

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Wed 5/14

2:45 pm-4:45 am

3 stops33h 00m

Reykjavik Keflavik Intl

Wed 5/21

3:45 pm-1:50 pm

2 stops27h 05m

$682

JoplinReykjavik

JLN - KEF

JLNKEF

Joplin

Wed 8/6

8:05 am-8:30 am

1 stop19h 25m

Reykjavik Keflavik Intl

Fri 8/15

9:50 am-11:40 pm

2 stops18h 50m

$684

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/12

10:45 am-6:20 am

1 stop14h 35m

Reykjavik Keflavik Intl

Tue 5/20

8:50 am-4:47 pm

1 stop12h 57m

$707

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/12

3:40 pm-9:30 am

2 stops12h 50m

Reykjavik Keflavik Intl

Tue 5/20

8:50 am-4:47 pm

1 stop12h 57m

$712

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Tue 7/8

5:40 pm-7:00 am

1 stop8h 20m

Reykjavik Keflavik Intl

Fri 7/18

9:30 am-4:40 pm

1 stop12h 10m

$784

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Tue 7/8

6:00 am-8:10 am

2 stops21h 10m

Reykjavik Keflavik Intl

Mon 7/14

9:50 am-8:36 pm

2 stops39h 46m

$838

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Sat 5/3

6:40 pm-11:35 pm

2 stops23h 55m

Reykjavik Keflavik Intl

Fri 5/9

12:25 am-9:06 pm

2 stops25h 41m

$894

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Thu 7/3

1:30 pm-8:15 am

2 stops37h 45m

Reykjavik Keflavik Intl

Mon 7/14

9:50 am-8:00 pm

2 stops15h 10m

$913

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Fri 6/13

5:45 pm-8:10 am

2 stops33h 25m

Reykjavik Keflavik Intl

Wed 6/25

12:00 pm-11:15 pm

1 stop16h 15m

$923

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Fri 6/27

8:00 am-8:10 am

2 stops19h 10m

Reykjavik Keflavik Intl

Sat 7/5

9:30 am-11:14 pm

2 stops18h 44m

$984

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 24 results
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Best time to book a flight from Missouri to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl 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 Reykjavik Keflavik Intl Airport

What is the cheapest month to book a flight from Missouri to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Missouri to Reykjavik Keflavik Intl Airport (average of $328). Flying from Missouri to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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 KEF?

Find hourly flight availability from Missouri to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

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

Rainfall in Keflavik Intl by month

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

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport 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 Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

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

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, 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 Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated April 17, 2025.
Read through reviews of airlines operating flights from Missouri to Reykjavik, such as Alaska Airlines, Delta and KLM. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
KLM
7.8
Good
1,329 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Finnair
7.6
Good
1,269 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Air France
7.5
Good
1,435 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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

  • What are the cheapest airlines to fly from Missouri to Reykjavik Keflavik Intl Airport one-way?

    The cheapest airlines for a one-way flight from Missouri to Reykjavik Keflavik Intl Airport are WestJet ($519), KLM ($545), and Lufthansa ($746).

  • What are the most popular routes from Missouri to Reykjavik Keflavik Intl Airport?

    The most popular flight routes from Missouri to Reykjavik Keflavik Intl Airport are Kansas City - Reykjavik Keflavik Intl, Lambert-St Louis - Reykjavik Keflavik Intl and Joplin - Reykjavik Keflavik Intl.

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

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

  • How can I find direct flights from Missouri to Keflavik Intl?

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

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

    Yes. Cheapflights offers flight deals from Missouri to Keflavik Intl 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 Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Missouri to Reykjavik Keflavik Intl Airport (average of $328). Flying from Missouri to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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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Keflavik

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Alternative routes for Missouri to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Missouri to Keflavik Intl

Discover the top 4 airlines that operate flights from Missouri to Keflavik Intl. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$370Average$1,084FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$566Average$739FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$626Average$1,074FlexibilityNo cancel feeOn-time69%
DeltaCheapest$650Average$937FlexibilityNo cancel feeOn-timeN/A

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