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Find cheap flights from St. Louis to Iceland from $369

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Iceland departing on 7/21. 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
0 bags
Wed 6/5
Wed 6/12

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Good to know

Low season

September

High season

September

Cheapest flight

$369
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 33% 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 to Iceland from St. Louis 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 to Iceland with an airline and back to St. Louis 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 to Iceland from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Iceland

  • Morning departure is around 40% more expensive than an evening flight, on average*.
  • 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.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 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.
8.0
DeltaOverall score based on 10818 reviews
8.2Boarding
7.9Comfort
8.0Entertainment
7.4Food
8.6Crew
Airline reviews

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

8.0 ExcellentCynthia, May 2024ATL - TYS
Read more about Delta reviews

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

I was in business class. There was an excellent headset. But half an hour before arrival they collected them! The rest of the trip I had to use a cheap earphone. There must be a better way to protect the headphones.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

You do not have a space for flight cancelled. BUT!!! Air Canada handled it great. Was booked on another airline for the next day. The original flight was booked solid. But he precheck by the maintenance found a mechanical problem and the plane was not safe to fly. It was an inconvenience to have to wait until next day but I would rather arrive safely.

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

Easy boarding, roomy seats, plenty of good food, very helpful snd friendly staff. Very smooth flight! Only thing that could have been better was to have cranberry juice. Women like this as it helps avoid UTI’s and not as sweet as other juices.

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Book cheap flights from St. Louis to Iceland

Recent round-trip flight deals

10/14Mon
1 stopDelta
11h 15mSTL-KEF
10/21Mon
1 stopDelta
16h 41mKEF-STL
$640
10/14Mon
1 stopDelta
11h 15mSTL-KEF
10/21Mon
2 stopsDelta
29h 01mKEF-STL
$645
5/30Thu
2 stops
28h 20mSTL-KEF
6/4Tue
3 stops
32h 30mKEF-STL
$665
9/1Sun
1 stopAir Canada
11h 30mSTL-KEF
9/15Sun
1 stopAir Canada
10h 20mKEF-STL
$669
8/17Sat
1 stopAir Canada
15h 35mSTL-KEF
8/24Sat
1 stopAir Canada
16h 05mKEF-STL
$686
9/13Fri
2 stopsUnited Airlines
14h 50mSTL-KEF
9/17Tue
2 stopsUnited Airlines
16h 13mKEF-STL
$755
9/13Fri
1 stopUnited Airlines
16h 20mSTL-KEF
9/17Tue
1 stopUnited Airlines
10h 05mKEF-STL
$807
10/14Mon
2 stopsAmerican Airlines
36h 47mSTL-KEF
10/21Mon
3 stopsAmerican Airlines
27h 24mKEF-STL
$1,363
9/1Sun
3 stopsAmerican Airlines
19h 54mSTL-KEF
9/15Sun
3 stopsAmerican Airlines
27h 49mKEF-STL
$1,655
8/6Tue
2 stopsBritish Airways
14h 51mSTL-KEF
8/17Sat
2 stopsBritish Airways
38h 37mKEF-STL
$6,547

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7/21Sun
1 stopAir Canada
15h 35mSTL-KEF
$369
7/22Mon
1 stopAir France
11h 10mSTL-KEF
$374
7/23Tue
1 stopDelta
19h 45mSTL-KEF
$413
6/14Fri
3 stops
51h 48mSTL-KEF
$520
7/23Tue
2 stops
32h 20mSTL-KEF
$536
7/23Tue
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24h 51mSTL-KEF
$569
7/21Sun
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20h 30mSTL-KEF
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20h 30mSTL-KEF
$582
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32h 55mSTL-KEF
$693
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1 stopUnited Airlines
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St. Louis - Iceland Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Iceland - St. Louis

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