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$381+ Cheap flights from Keflavik Intl (KEF) to Missouri

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — STL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Keflavik Intl to Missouri

Keep the following information in mind while searching for Keflavik Intl to Missouri flight deals. Data was last updated junio 12, 2025.

Round-trip from

$728
(Flightnetwork)

One-way from

$381
(Kiwi.com)
From Reykjavik Keflavik Intl to Missouri
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One-way flight from Reykjavik Keflavik Intl to Missouri
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Find flight deals from Keflavik Intl to Missouri

Cheapest flights from Keflavik Intl to Missouri
Explore the most affordable flight options available from Keflavik Intl to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Flightnetwork deal was found by Cheapflights users on 6/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/269:30 amKEF - STL
2 stops15h 15mAir Canada
sáb. 8/25:00 amSTL - KEF
2 stops22h 10mAir Canada
Deal found 6/10$728
This United Airlines deal was found by Cheapflights users on 6/10. 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.
vie. 7/259:30 amKEF - STL
1 stop16h 20mUnited Airlines
vie. 8/18:00 amSTL - KEF
1 stop19h 30mUnited Airlines
Deal found 6/10$746
This United Airlines deal was found by Cheapflights users on 6/11. 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.
sáb. 7/269:30 amKEF - MCI
2 stops17h 40mUnited Airlines
sáb. 8/25:40 pmMCI - KEF
2 stops33h 50mUnited Airlines
Deal found 6/11$811
This Mytrip deal was found by Cheapflights users on 6/10. 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.
sáb. 7/269:35 amKEF - STL
3 stops29h 17mMultiple Airlines
sáb. 8/24:00 pmSTL - KEF
3 stops35h 15mMultiple Airlines
Deal found 6/10$876
This Delta deal was found by Cheapflights users on 6/11. 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.
vie. 6/2711:25 amKEF - STL
2 stops14h 15mDelta
mar. 7/111:29 amSTL - KEF
1 stop14h 31mDelta
Deal found 6/11$961
This Delta deal was found by Cheapflights users on 6/11. 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.
vie. 6/279:30 amKEF - MCI
1 stop18h 44mDelta
mar. 7/14:12 pmMCI - KEF
1 stop9h 48mDelta
Deal found 6/11$1,012
This Justfly.com deal was found by Cheapflights users on 6/11. 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.
jue. 6/261:15 amKEF - STL
2 stops17h 15mLufthansa
mar. 7/15:31 pmSTL - KEF
2 stops25h 04mLufthansa
Deal found 6/11$1,244
This Gurufare deal was found by Cheapflights users on 6/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/261:15 amKEF - MCI
2 stops26h 00mLufthansa
mar. 7/13:28 pmMCI - KEF
1 stop12h 02mLufthansa
Deal found 6/11$1,287
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/241:05 amKEF - STL
3 stops25h 37mScandinavian Airlines
vie. 8/13:41 pmSTL - KEF
2 stops27h 09mScandinavian Airlines
Deal found 6/10$1,593
This Ovago deal was found by Cheapflights users on 6/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/2412:10 amKEF - STL
2 stops28h 25mAustrian Airlines
vie. 8/11:20 pmSTL - KEF
2 stops29h 00mAustrian Airlines
Deal found 6/10$1,643
This Air Canada deal was found by Cheapflights users on 6/11. 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.
vie. 6/279:30 amKEF - MCI
3 stops17h 01mMultiple Airlines
mar. 7/19:15 amMCI - KEF
2 stops17h 55mMultiple Airlines
Deal found 6/11$1,653
This Air Canada deal was found by Cheapflights users on 6/11. 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.
vie. 6/279:30 amKEF - MCI
3 stops17h 01mAir Canada
mar. 7/111:31 amMCI - KEF
3 stops15h 39mAir Canada
Deal found 6/11$1,721

Cheapflights Fare Finder

Customize your flight search to find flights from Keflavik Intl to Missouri 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 junio 12, 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Missouri that are best for you.

Fly from

Keflavik Intl

Fly to

Missouri

Route

Depart

Return

Price

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

sáb. 7/26

9:30 am-7:45 pm

2 stops15h 15m

Lambert-St Louis

sáb. 8/2

5:00 am-8:10 am

2 stops22h 10m

$728

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

vie. 7/25

9:30 am-8:50 pm

1 stop16h 20m

Lambert-St Louis

vie. 8/1

8:00 am-8:30 am

1 stop19h 30m

$746

ReykjavikKansas City

KEF - MCI

KEFMCI

Reykjavik Keflavik Intl

sáb. 7/26

9:30 am-10:10 pm

2 stops17h 40m

Kansas City

sáb. 8/2

5:40 pm-8:30 am

2 stops33h 50m

$811

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

sáb. 7/26

9:35 am-9:52 am

3 stops29h 17m

Lambert-St Louis

sáb. 8/2

4:00 pm-8:15 am

3 stops35h 15m

$876

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

vie. 6/27

11:25 am-8:40 pm

2 stops14h 15m

Lambert-St Louis

mar. 7/1

11:29 am-7:00 am

1 stop14h 31m

$961

ReykjavikKansas City

KEF - MCI

KEFMCI

Reykjavik Keflavik Intl

vie. 6/27

11:25 am-8:45 pm

2 stops14h 20m

Kansas City

mar. 7/1

4:12 pm-7:00 am

1 stop9h 48m

$1,012

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

jue. 6/26

1:15 am-1:30 pm

2 stops17h 15m

Lambert-St Louis

mar. 7/1

5:31 pm-11:35 pm

2 stops25h 04m

$1,244

ReykjavikKansas City

KEF - MCI

KEFMCI

Reykjavik Keflavik Intl

jue. 6/26

1:15 am-10:15 pm

2 stops26h 00m

Kansas City

mar. 7/1

3:28 pm-8:30 am

1 stop12h 02m

$1,287

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

jue. 7/24

1:05 am-9:42 pm

3 stops25h 37m

Lambert-St Louis

vie. 8/1

3:41 pm-11:50 pm

2 stops27h 09m

$1,593

ReykjavikSt. Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

jue. 7/24

12:10 am-11:35 pm

2 stops28h 25m

Lambert-St Louis

vie. 8/1

1:20 pm-11:20 pm

2 stops29h 00m

$1,643

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 25 results
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Best time to book a flight from Keflavik Intl to Missouri

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

Rainfall in Missouri by month

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

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

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

If weather is an important factor for your trip to Missouri, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated junio 12, 2025.
Get a feel of what it's like to fly with Delta, Austrian Airlines and Finnair from Reykjavik to Missouri by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,387 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to Missouri. 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 Reykjavik Keflavik Intl Airport to Missouri one-way?

    $750 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Delta and Lufthansa, with prices starting from $756 and $1,042, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Missouri (average of $311). Flying from Reykjavik Keflavik Intl Airport to Missouri in March is currently the most expensive (average of $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 Keflavik Intl to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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