HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Keflavik Intl (KEF) to St. Louis (STL) from $733

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
KEF — STL
May 13 — May 201
From?
To?
Mon 5/13
Mon 5/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

When is the cheapest time to fly from Reykjavik Keflavik Intl Airport to St. Louis (KEF - STL)?

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

Cheap Virgin Atlantic flights from Keflavik Intl to St. Louis

Explore cheap flight options specifically provided by Virgin Atlantic for the route between Keflavik Intl and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Check out some of the cheapest Virgin Atlantic flights we've come across from Reykjavik to St. Louis. It's recommended that users confirm their flight details before booking.
Thu 9/511:25 amKEF - STL
2 stops38h 52mVirgin Atlantic
Mon 9/910:00 amSTL - KEF
2 stops18h 30mVirgin Atlantic
Deal found 5/6$761
Thu 9/511:25 amKEF - STL
2 stops36h 49mVirgin Atlantic
Mon 9/97:15 pmSTL - KEF
2 stops33h 15mVirgin Atlantic
Deal found 5/7$785

Cheap Delta flights from Keflavik Intl to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Keflavik Intl and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Browse through some of the cheapest Delta flights traveling from Reykjavik to St. Louis. Deals frequently update to provide users with more options.
Thu 9/511:25 amKEF - STL
2 stops30h 33mDelta
Mon 9/910:10 amSTL - KEF
1 stop15h 10mDelta
Deal found 5/7$817
Thu 9/511:25 amKEF - STL
2 stops14h 52mDelta
Mon 9/910:10 amSTL - KEF
1 stop15h 10mDelta
Deal found 5/6$834

Cheap Keflavik Intl to St. Louis flights in May & June 2024

Find cheap flight options from Keflavik Intl to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Prices were last updated on May 8, 2024.
These are some of the most attractive deals on flights from Reykjavik to St. Louis in 2024. Check back regularly for other flight deals.
Sun 5/1912:25 amKEF - STL
2 stops43h 56mMultiple Airlines
Mon 5/2711:00 amSTL - KEF
2 stops20h 55mMultiple Airlines
Deal found 5/8$733
Mon 5/2011:25 amKEF - STL
2 stops14h 00mMultiple Airlines
Mon 5/2710:20 amSTL - KEF
1 stop15h 40mMultiple Airlines
Deal found 5/8$755
Sun 5/1912:25 amKEF - STL
2 stops20h 21mLufthansa
Mon 5/275:31 pmSTL - KEF
1 stop9h 59mLufthansa
Deal found 5/8$847
Mon 5/208:45 amKEF - STL
3 stops29h 23mMultiple Airlines
Mon 5/275:55 amSTL - KEF
2 stops22h 25mMultiple Airlines
Deal found 5/8$1,287
Mon 5/208:45 amKEF - STL
3 stops29h 23mMultiple Airlines
Mon 5/275:04 amSTL - KEF
3 stops23h 16mMultiple Airlines
Deal found 5/8$2,434

Keflavik Intl to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Keflavik Intl and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
These are some of the most attractive deals on flights from Reykjavik to St. Louis in 2024. Check back regularly for other flight deals.
Sun 5/1912:25 amKEF - STL
2 stops43h 56mMultiple Airlines
Mon 5/2711:00 amSTL - KEF
2 stops20h 55mMultiple Airlines
Deal found 5/8$733
Mon 5/2011:25 amKEF - STL
2 stops14h 00mMultiple Airlines
Mon 5/2710:20 amSTL - KEF
1 stop15h 40mMultiple Airlines
Deal found 5/8$755
Thu 9/511:25 amKEF - STL
2 stops36h 49mVirgin Atlantic
Mon 9/97:15 pmSTL - KEF
2 stops33h 15mVirgin Atlantic
Deal found 5/7$785
Thu 9/511:25 amKEF - STL
2 stops30h 33mDelta
Mon 9/910:10 amSTL - KEF
1 stop15h 10mDelta
Deal found 5/7$817
Sun 5/1912:25 amKEF - STL
2 stops20h 21mLufthansa
Mon 5/275:31 pmSTL - KEF
1 stop9h 59mLufthansa
Deal found 5/8$847
Thu 9/512:00 pmKEF - STL
1 stop14h 52mUnited Airlines
Mon 9/95:20 pmSTL - KEF
1 stop10h 10mUnited Airlines
Deal found 5/7$1,277
Mon 5/208:45 amKEF - STL
3 stops29h 23mMultiple Airlines
Mon 5/275:55 amSTL - KEF
2 stops22h 25mMultiple Airlines
Deal found 5/8$1,287
Mon 5/208:45 amKEF - STL
3 stops29h 23mMultiple Airlines
Mon 5/275:04 amSTL - KEF
3 stops23h 16mMultiple Airlines
Deal found 5/8$2,434

Keflavik Intl to St. Louis flights leaving soon

Find last-minute flight options from Keflavik Intl to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Consider one of these great deals we found on last-minute flights from Reykjavik to St. Louis. To prevent any unwanted surprises, users should verify their flight info before booking.
Sun 5/1912:25 amKEF - STL
2 stops43h 56mMultiple Airlines
Mon 5/2711:00 amSTL - KEF
2 stops20h 55mMultiple Airlines
Deal found 5/8$733
Mon 5/2011:25 amKEF - STL
2 stops14h 00mMultiple Airlines
Mon 5/2710:20 amSTL - KEF
1 stop15h 40mMultiple Airlines
Deal found 5/8$755
Sun 5/1912:25 amKEF - STL
2 stops20h 21mLufthansa
Mon 5/275:31 pmSTL - KEF
1 stop9h 59mLufthansa
Deal found 5/8$847
Mon 5/208:45 amKEF - STL
3 stops29h 23mMultiple Airlines
Mon 5/275:55 amSTL - KEF
2 stops22h 25mMultiple Airlines
Deal found 5/8$1,287
Mon 5/208:45 amKEF - STL
3 stops29h 23mMultiple Airlines
Mon 5/275:04 amSTL - KEF
3 stops23h 16mMultiple Airlines
Deal found 5/8$2,434

One-way flights to St. Louis from Keflavik Intl

Search for one-way flight options from Keflavik Intl to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Users traveling one-way from Reykjavik to St. Louis can select one of these great deals. Those seeking round-trip flights from Reykjavik to St. Louis should utilize the search form at the the top of the page.
Sun 7/149:30 amKEF - STL
1 stop12h 34mAir France
Deal found 5/7$749
Sun 7/149:30 amKEF - STL
2 stops16h 06mDelta
Deal found 5/7$777
Sat 7/131:05 amKEF - STL
2 stops24h 44mMultiple Airlines
Deal found 5/7$814
Sat 7/1312:25 amKEF - STL
1 stop18h 05mLufthansa
Deal found 5/7$1,851
Sun 7/1410:25 amKEF - STL
3 stops29h 05mAmerican Airlines
Deal found 5/7$1,983

Find flights from Keflavik Intl to St. Louis within your budget

Customize your flight search to find flights from Keflavik Intl to St. Louis 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 2,752,338 searches. Data last updated May 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$733 - $1,277

Route

Depart

Return

Price

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Sun 5/19

2 stops43h 56m

Lambert-St Louis

Mon 5/27

2 stops20h 55m

$733

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Mon 5/20

2 stops14h 00m

Lambert-St Louis

Mon 5/27

1 stop15h 40m

$755

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

2 stops38h 52m

Lambert-St Louis

Mon 9/9

2 stops18h 30m

$761

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

2 stops36h 49m

Lambert-St Louis

Mon 9/9

2 stops33h 15m

$785

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

2 stops30h 33m

Lambert-St Louis

Mon 9/9

1 stop15h 10m

$817

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

2 stops14h 52m

Lambert-St Louis

Mon 9/9

1 stop15h 10m

$834

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Sun 5/19

2 stops20h 21m

Lambert-St Louis

Mon 5/27

1 stop9h 59m

$847

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

1 stop10h 05m

Lambert-St Louis

Mon 9/9

1 stop14h 35m

$964

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

1 stop14h 52m

Lambert-St Louis

Mon 9/9

1 stop10h 10m

$1,277

Flights are sorted by cheapest first

Deals found on 5/8

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 8, 2024.
Peruse reviews from past customers who have flown with Virgin Atlantic, Delta and United Airlines from Reykjavik to St. Louis to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,789 reviews
Check prices

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.1
Very good
10,789 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Virgin Atlantic
7.7
Good
739 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Air France
7.5
Good
1,777 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
11,043 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,677 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to St. Louis. 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 into for flights to St. Louis from Reykjavik Keflavik Intl?

    If you book a flight to St. Louis from Reykjavik Keflavik Intl, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Reykjavik Keflavik Intl to Lambert-St Louis per day from 0 different airlines.

  • Can I find flights from Reykjavik Keflavik Intl Airport to St. Louis for under $800 on Cheapflights?

    Yes, there are multiple flights from Reykjavik Keflavik Intl Airport to St. Louis for under $800. The cheapest flight booked recently is on Multiple Airlines for just $733, but on average you can expect to pay $1,044.

  • Are there last-minute flights available from Reykjavik Keflavik Intl Airport to St. Louis for under $800?

    There are currently 5+ open flights from Reykjavik Keflavik Intl Airport to St. Louis within the next 7 days for less than $800.

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

    For one-way options, check prices for Air France. According to our data, you can fly for as low as $749. Users have also found prices from $777 and $1,851 on Delta and Lufthansa, respectively.

  • What does KEF to STL mean?

    Reykjavik Keflavik Intl Airport is KEF and Lambert-St Louis Airport is STL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Keflavik Intl to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Keflavik Intl to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Keflavik Intl to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Keflavik Intl to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Keflavik Intl to St. Louis that allow pets onboard?

    Many airlines flying from Keflavik Intl to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Keflavik Intl to St. Louis?

    Yes, you can often find last-minute deals on Keflavik Intl to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Reykjavik Keflavik Intl Airport to St. Louis flight deals updated?

    The Reykjavik Keflavik Intl Airport to St. Louis flight deals you see on this page were last updated on 5/8.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Keflavik Intl to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Keflavik Intl to Kansas City flights
Memphis to Las Vegas flights
Boise to Seattle flights
San Diego to Denver flights
Fort Lauderdale to Boston flights
New York to San Juan flights
Baltimore to Miami flights
Hartford to Orlando flights
Boston to Tampa flights
Boston to Mumbai flights
New York to London flights
Chicago to San Francisco flights
Reykjavik Keflavik Intl Airport to Tampa flights

Search flights from Keflavik Intl to St. Louis by cabin class

Find flights from Keflavik Intl to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Ordu/Giresun
Flights to Hakodate
Flights to Gazipasa
Flights to Kirkwall Arpt
Flights to Skiathos
Flights to Bourgas
Flights to Kalamata
Flights to Menorca/Mahon
Flights to Mytilene
Flights to Mason City
Flights to Pau Pyrénées
Flights to Neiva La Marguita
Flights to Cortez Montezuma County
Flights to Biarritz Parme
Flights to Parikia Paros
Flights to Ohrid
Flights to Edremit/Korfez
Flights to Naxos
Flights to Dalaman
Flights to Lublin
Flights to Miyakojima Hirara
Flights to Champaign University-Willard
Flights to Kagoshima
Flights to Constanţa Mihail Kogalniceanu

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Keflavik Intl to St. Louis?

Deals for Keflavik Intl to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Keflavik Intl to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from Keflavik Intl to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Keflavik Intl to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Keflavik Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Keflavik Intl to St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Keflavik Intl today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines