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Keflavik Intl

$510+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KEF
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Round-trip from

$688
(Mytrip)

One-way from

$510
(Cheapflightsfares)
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 2, 2025.

This Mytrip deal was found by Cheapflights users on 4/1. 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.
Sun 5/1110:15 amMCI - KEF
2 stops37h 30mMultiple Airlines
Sun 5/183:45 pmKEF - MCI
2 stops27h 05mMultiple Airlines
Deal found 4/1$688
This Expedia deal was found by Cheapflights users on 4/1. 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.
Sat 11/156:29 pmSTL - KEF
2 stops58h 26mBritish Airways
Sat 11/2211:50 amKEF - STL
2 stops39h 51mBritish Airways
Deal found 4/1$711
This Mytrip deal was found by Cheapflights users on 4/1. 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.
Fri 5/25:15 pmSTL - KEF
2 stops32h 25mMultiple Airlines
Fri 5/94:25 pmKEF - STL
2 stops24h 20mMultiple Airlines
Deal found 4/1$745
This KLM deal was found by Cheapflights users on 4/1. 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 10/1410:45 amSTL - KEF
1 stop14h 35mKLM
Mon 10/208:50 amKEF - STL
1 stop12h 57mKLM
Deal found 4/1$771
This KLM deal was found by Cheapflights users on 4/1. 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 10/72:15 pmMCI - KEF
1 stop11h 05mKLM
Sun 10/1211:25 amKEF - MCI
1 stop12h 15mKLM
Deal found 4/1$771
This Delta deal was found by Cheapflights users on 4/1. 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 10/77:00 amMCI - KEF
2 stops18h 20mDelta
Sun 10/128:50 amKEF - MCI
2 stops20h 07mDelta
Deal found 4/1$776
This Booking.com deal was found by Cheapflights users on 4/1. 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.
Mon 9/14:05 pmSTL - KEF
2 stops35h 30mAir Canada
Tue 9/3010:00 amKEF - STL
2 stops38h 57mAir Canada
Deal found 4/1$806
This Lufthansa deal was found by Cheapflights users on 4/1. 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.
Tue 10/145:18 pmSTL - KEF
2 stops25h 17mLufthansa
Sun 10/1912:25 amKEF - STL
2 stops43h 56mLufthansa
Deal found 4/1$823
This United Airlines deal was found by Cheapflights users on 3/31. 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 8/244:48 pmMCI - KEF
1 stop10h 42mUnited Airlines
Sun 8/319:30 amKEF - MCI
2 stops39h 47mUnited Airlines
Deal found 3/31$826
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:33 amMCI - KEF
2 stops16h 02mAir Canada
Sun 9/2110:00 amKEF - MCI
2 stops16h 42mAir Canada
Deal found 4/1$855
This United deal was found by Cheapflights users on 4/1. 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 9/149:17 amSTL - KEF
1 stop18h 13mUnited Airlines
Sun 9/2810:00 amKEF - STL
2 stops34h 21mUnited Airlines
Deal found 4/1$876
This Travelocity deal was found by Cheapflights users on 3/31. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:08 pmMCI - KEF
2 stops34h 37mBritish Airways
Sat 10/1810:00 amKEF - MCI
2 stops17h 08mBritish Airways
Deal found 3/31$882

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 2, 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

Sun 5/11

10:15 am-4:45 am

2 stops37h 30m

Reykjavik Keflavik Intl

Sun 5/18

3:45 pm-1:50 pm

2 stops27h 05m

$688

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Fri 5/2

5:15 pm-6:40 am

2 stops32h 25m

Reykjavik Keflavik Intl

Fri 5/9

4:25 pm-11:45 am

2 stops24h 20m

$745

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Mon 9/22

2:15 pm-6:20 am

1 stop11h 05m

Reykjavik Keflavik Intl

Wed 10/1

8:50 am-5:17 pm

1 stop13h 27m

$796

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Mon 9/22

1:45 pm-9:30 am

2 stops14h 45m

Reykjavik Keflavik Intl

Wed 10/1

8:50 am-4:44 pm

2 stops12h 54m

$801

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Mon 9/1

4:05 pm-8:35 am

2 stops35h 30m

Reykjavik Keflavik Intl

Tue 9/30

10:00 am-7:57 pm

2 stops38h 57m

$806

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Sun 8/24

4:48 pm-8:30 am

1 stop10h 42m

Reykjavik Keflavik Intl

Sun 8/31

9:30 am-8:17 pm

2 stops39h 47m

$826

SpringfieldReykjavik

SGF - KEF

SGFKEF

Springfield-Branson

Fri 9/5

3:11 pm-8:30 am

1 stop12h 19m

Reykjavik Keflavik Intl

Tue 9/16

12:00 pm-10:15 pm

1 stop15h 15m

$849

Kansas CityReykjavik

MCI - KEF

MCIKEF

Kansas City

Sun 9/14

11:33 am-8:35 am

2 stops16h 02m

Reykjavik Keflavik Intl

Sun 9/21

10:00 am-9:42 pm

2 stops16h 42m

$855

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

$873

St. LouisReykjavik

STL - KEF

STLKEF

Lambert-St Louis

Sun 9/14

9:17 am-8:30 am

1 stop18h 13m

Reykjavik Keflavik Intl

Sun 9/28

10:00 am-3:21 pm

2 stops34h 21m

$876

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 28 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 2, 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 2, 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
9,820 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

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
9,820 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

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
Delta
8.0
Very good
7,898 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

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
1,323 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

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
1,267 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

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
Air France
7.4
Good
1,425 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

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 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 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 Springfield-Branson - 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$370Average$1,064FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$566Average$758FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$626Average$1,042FlexibilityNo cancel feeOn-time69%
DeltaCheapest$650Average$923FlexibilityNo cancel feeOn-timeN/A

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