$610 Find Cheap Flights from St. Louis to Iceland

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Iceland departing on 2/8. 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.
1 adult
1 adult, Economy

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Book Cheap St. Louis to Iceland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Iceland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Iceland

Sun, Feb 8 - Tue, Feb 17
Multiple Airlines Logo
4:05 pm - 2:20 pmSTL-KEF
40h 15m2 stops
Multiple Airlines Logo
3:20 pm - 10:00 pmKEF-STL
36h 40m2 stops
$610Multiple Airlines
Find Deal
Sun, Feb 8 - Tue, Feb 17
Multiple Airlines Logo
6:40 pm - 2:20 pmSTL-KEF
37h 40m3 stops
Multiple Airlines Logo
3:20 pm - 7:25 pmKEF-STL
34h 05m2 stops
$679Multiple Airlines
Find Deal
Wed, Apr 1 - Sat, Apr 18
Finnair Logo
5:59 pm - 7:50 amSTL-KEF
32h 51m2 stops
Finnair Logo
8:35 am - 9:48 pmKEF-STL
18h 13m2 stops
$682Finnair
Find Deal
Wed, Nov 12 - Tue, Nov 18
Finnair Logo
1:20 pm - 9:15 amSTL-KEF
37h 55m2 stops
Finnair Logo
10:00 am - 7:30 pmKEF-STL
39h 30m2 stops
$692Finnair
Find Deal
Mon, Mar 2 - Fri, Mar 13
Finnair Logo
11:54 am - 9:00 amSTL-KEF
39h 06m2 stops
Finnair Logo
10:00 am - 10:24 pmKEF-STL
41h 24m2 stops
$723Finnair
Find Deal
Wed, Apr 1 - Thu, Jun 18
Lufthansa Logo
5:18 pm - 12:10 amSTL-KEF
25h 52m2 stops
Lufthansa Logo
1:15 am - 1:30 pmKEF-STL
17h 15m2 stops
$751Lufthansa
Find Deal
Thu, Nov 13 - Wed, Nov 19
Scandinavian Airlines Logo
1:55 pm - 11:55 pmSTL-KEF
28h 00m2 stops
Scandinavian Airlines Logo
11:30 am - 9:18 pmKEF-STL
39h 48m2 stops
$767Scandinavian Airlines
Find Deal
Wed, Nov 12 - Tue, Nov 18
Lufthansa Logo
3:50 pm - 2:15 pmSTL-KEF
16h 25m2 stops
Lufthansa Logo
3:20 pm - 1:55 pmKEF-STL
28h 35m1 stop
$769Lufthansa
Find Deal
Tue, Nov 25 - Tue, Dec 2
British Airways Logo
4:46 pm - 10:45 amSTL-KEF
35h 59m2 stops
British Airways Logo
11:50 am - 4:50 pmKEF-STL
35h 00m2 stops
$1,181British Airways
Find Deal
Fri, Mar 13 - Tue, Mar 24
British Airways Logo
11:18 am - 10:40 amSTL-KEF
42h 22m2 stops
British Airways Logo
10:00 am - 10:24 pmKEF-STL
41h 24m2 stops
$1,214British Airways
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Iceland flights

Get data-powered insights and trends into flights from St. Louis to Iceland to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between St. Louis and Iceland?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Iceland.

There are 4 airlines that fly nonstop from St. Louis to Iceland. They are: KLM, Air Canada, Delta and United Airlines. The cheapest price of all airlines flying this route was found with Air Canada at $566 for a round-trip flight to Reykjavik Keflavik Intl Airport (KEF). On average, Air Canada offers the best prices for nonstop flights between St. Louis and Iceland.

Which airlines provide the cheapest flights from St. Louis to Iceland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Iceland were found on Finnair ($682) and Lufthansa ($751).

Good to know

Low seasonApril
Cheapest flight$610
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from St. Louis to Reykjavik

FAQs - booking Iceland flights

  • Will I have to get a visa to fly from St. Louis to Iceland?

    Whether you're flying from St. Louis to Iceland for business or pleasure, American citizens won't need to worry about getting a visa if you'll be staying for less than 90 days. But you will need to have a valid passport handy , and you'll also need to show proof of a return ticket to the U.S.

  • Where will layovers on flights from St. Louis to Iceland typically take place?

    You will normally have to make at least one stop on flights from St. Louis to Iceland, and sometimes you'll need to make even more than one stop to get there. Each airline that flies to Iceland will use different airports for layovers, but Newark Liberty International Airport (EWR), Minneapolis-Saint Paul International Airport (MSP), Oslo Airport (OSL) and Copenhagen Airport (CPH) are a few of the most common options they'll have.

  • Which airlines that fly from St. Louis to Iceland serve the best meals?

    United Airlines will serve you a tasty three-course meal on international flights that will include a salad and a main course along with a dessert. If flights from St. Louis to Iceland take more than 12 hours, you'll also receive a sandwich and candy in most cases.

  • Is there a specific airline I should fly with to make a flight to Iceland more sustainable?

    Flying from St. Louis to Iceland with an airline like Air Canada will automatically make your flight more sustainable. Air Canada is diligently working on upgrading its fleet and doing away with most single-use plastics on its flights as it works to become carbon-neutral.

  • How does KAYAK find such low prices on flights from St. Louis to Iceland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Iceland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Iceland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Iceland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Iceland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Iceland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Iceland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Iceland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Iceland?

    The cheapest time of day to fly to Iceland is generally in the morning, when round-trip flights cost $846 on average. Morning departures are around 19% cheaper than evening flights, on average. The most expensive time of day to fly to Iceland is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,040.

Top tips for finding cheap flights to Iceland

  • Many airlines can provide you with flights from St. Louis to Iceland. Air Canada, American Airlines, Delta, and United Airlines are several airlines that fly out of St. Louis Lambert International Airport (STL) to Keflavík International Airport (KEF).
  • While shopping for flights from St. Louis to Iceland, narrow down your options to only one-stop flights. You shouldn't get stuck making two or three stops between St. Louis Lambert International Airport and Keflavík International Airport. United Airlines offers one-stop flights that are scheduled to take just over 10 hours. Flights with more than one stop often take two or even times as long.
  • If you'll be flying from St. Louis Lambert International Airport to Iceland with children, choosing a kid-friendly airline will be a good idea. Delta is a great option for parents, as this airline provides kids with activity kits and in-flight movies to keep them busy.
  • Those who can afford to fly first class when traveling from St. Louis to Iceland should try to do it. You'll be treated to a lie-flat seat when you fly first class with airlines like Air Canada and American Airlines. This seat will help you sleep throughout most of your flight. You'll also be treated to extra in-flight entertainment and dining options when you're sitting in first class.
  • St. Louis Lambert International Airport has a handful of lounges you can use if you need to kill time after arriving 2 to 3 hours early for an international flight to Iceland. The Wingtips Lounge, for example, is available to passengers from all airlines for a small fee.

Reviews of the top 4 airlines serving from St. Louis to Iceland

 
Need help choosing which airline to fly with from St. Louis to Iceland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7973 reviews
7.9Entertainment
8.2Boarding
7.3Food
8.5Crew
7.9Comfort
Airline reviews

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

6.0 GoodDonna, Oct 2025BOS - MSY
Read more Delta reviews

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

The flight was an hour and a half late departing which was inconvenient

Delay in SLC jammed us up in Chicago. Got caught up in rush hour traffic

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

The flight was great. The gate location was way to far away!!!

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

Cramped seating for me. Luckily it wasn’t a long flight

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

The airport was reasonably clean. The boarding process reasonably efficient. The cabin crew was efficient, polite but not that friendly. The food quality was unremarkable and the choices were awful . There was either a so so chicken dish or a “ vegetarian “ option which was really cheap carbohydrates drowned in cheese. Signing onto i flight wifi was not straightforward. Overall it was a very average experience

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Boarding was organized. Old plane. Seat fairly comfortable. Business Class much too large so you don’t receive as much attention as you should considering what you pay for the seat.

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

It was a smooth flight both in the sky and landing!

Pearson Airport could not properly handle all the passengers who they needed to process in order to properly get them on board. As a result, I missed the departure of my flight from Toronto. The only saving grace is that Air Canada found a flight that only delayed me by one hour. However, this was no thanks to Pearson Airport!

Almost everything it was a “cool” ambiance but we arrived to Toronto so that it’s ok for me

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

Check in agent was very helpful and polite. He helped me board the earlier flight back home instead of waiting 2 hours at the airport for the next flight

Fair. What's the point of partnering with United if we cannot use the lounge. My wife is a frequent flier with United but we were refused access to Air Canada lounge

extremely cramped seating... absolutely no leg room and when person in front of me reclined... I was pinned in my seat... absolutely ridiculous

Didn’t realize I purchased a basic fare with no carry ons allowed. Not very well communicated. Also had seats switched without knowledge and had to pay for different ones.

We loved our Air Canada experience and will definitely fly them again. It just so happened than in the first leg of our trip their entertainment system was not working, and neither was their oven so cold meal & snacks only.

Everything you need to know for your flight from St. Louis to Iceland

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