STL - LIS

$309 Find Cheap Flights from St. Louis to Lisbon

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 Lisbon departing on 5/1. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Lisbon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Lisbon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Lisbon.
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Everything you should know

Cheapest round-trip
$495
Typical prices: $849-$991
United Airlines
Mon 4/20Wed 4/29
STL - LIS • 2 stops
Cheapest one-way
$309
Typical prices: $524-$648
British Airways
Fri 5/1
STL - LIS • 2 stops
Top airlines
United Airlines
Cheapest • from $495 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 43% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Lisbon (STL-LIS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Lisbon 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 Lisbon

Mon, Apr 20 - Wed, Apr 29
United Airlines Logo
9:10 am - 11:00 am
STL
-
LIS
19h 50m
2 stops
United Airlines Logo
5:05 am - 1:25 pm
LIS
-
STL
14h 20m
1 stop
$495United Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
9:55 am - 10:15 am
STL
-
LIS
18h 20m
2 stops
United Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m
1 stop
$496United Airlines
Wed, Apr 29 - Wed, May 6
Delta Logo
6:25 am - 8:00 am
STL
-
LIS
19h 35m
1 stop
Delta Logo
5:00 am - 11:13 pm
LIS
-
STL
24h 13m
2 stops
$498Delta
Mon, Apr 20 - Fri, May 1
Multiple Airlines Logo
4:05 pm - 10:45 pm
STL
-
LIS
24h 40m
2 stops
Multiple Airlines Logo
5:05 am - 1:25 pm
LIS
-
STL
14h 20m
1 stop
$499Multiple Airlines
Thu, Mar 5 - Fri, Mar 13
United Airlines Logo
7:41 am - 10:15 am
STL
-
LIS
20h 34m
2 stops
United Airlines Logo
5:00 am - 9:07 pm
LIS
-
STL
21h 07m
2 stops
$501United Airlines
Mon, Apr 20 - Fri, May 1
United Airlines Logo
9:10 am - 11:00 am
STL
-
LIS
19h 50m
2 stops
United Airlines Logo
1:00 pm - 4:01 pm
LIS
-
STL
33h 01m
2 stops
$502United Airlines
Tue, Mar 10 - Tue, Mar 17
Delta Logo
3:05 pm - 5:30 pm
STL
-
LIS
21h 25m
2 stops
Delta Logo
5:00 am - 5:53 pm
LIS
-
STL
17h 53m
2 stops
$503Delta
Mon, Apr 20 - Tue, Apr 28
United Airlines Logo
9:10 am - 11:00 am
STL
-
LIS
19h 50m
2 stops
United Airlines Logo
5:05 am - 9:08 pm
LIS
-
STL
22h 03m
2 stops
$505United Airlines
Sun, Apr 19 - Wed, Apr 29
Delta Logo
6:25 am - 8:00 am
STL
-
LIS
19h 35m
1 stop
Delta Logo
10:00 am - 7:26 pm
LIS
-
STL
15h 26m
1 stop
$508Delta
Sun, Apr 19 - Tue, Apr 28
Delta Logo
6:48 am - 8:00 am
STL
-
LIS
19h 12m
2 stops
Delta Logo
5:35 am - 8:42 pm
LIS
-
STL
21h 07m
2 stops
$509Delta
Booking Insights

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

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

How much is a round-trip flight from St. Louis to Lisbon?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Lisbon departing in April.

What is the cheapest month to fly from St. Louis to Lisbon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Lisbon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Lisbon is January, where tickets cost $617 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,689 and $1,288 respectively.

How far in advance should I book a flight from St. Louis to Lisbon?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Lisbon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Lisbon, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 1 week before departure.

Good to know

Low seasonNovember
Cheapest flight$309
Best time to beat the crowds with an average 30% drop in price.
Flight from St. Louis to Lisbon

When to book flights from St. Louis to Lisbon

Are your dates flexible? Find out the best times to travel from St. Louis to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Lisbon

  • What is British Airways baggage allowance?

    This depends on the travel class you are in. Economy Basic travelers must pay for all their luggage except handbags. Economy class travelers can bring one checked bag of fewer than 50 lbs. Premium Economy travelers can bring two items of checked baggage under 50 lbs, and business class travelers can get two checked items under 70 lbs. First-class travelers can bring three things under 50 lbs.

  • Does American Airlines provide special assistance?

    Yes. Reduced mobility travelers of American Airlines can get help to and from their gates, between gates during stops, and to the baggage claim area. Travelers that need hearing assistance can request assistance for essential flight updates. Also, low-vision travelers can get help checking in and entering their gates. However, travelers needing special assistance should contact American Airlines for service.

  • How do I get from Lisbon Humberto Delgado Airport?

    Lisbon Airport is served by a metro line that offers rides to the city in 20 minutes. You can find them outside the arrivals area. Several bus lines tip at the airport's arrival terminal, taking you to different parts of the city. You can also find taxis queuing outside the departures and arrival terminals.

  • What kind of seating do American Airlines have for flights from St. Louis Lambert International Airport to Lisbon Humberto Delgado Airport?

    American Airlines offer different type of seating on board depending on your travel class. Basic Economy travelers get standard legroom and space. They sit at the back of the plane, with white seats. Economy Plus seating offers extra legroom and passengers' seat in front of the economy cabin. Seats are either blue or purple, and they come with power plugs. In addition, travelers get complimentary alcoholic seats. United First travelers get more legroom and fully reclining seats. The seats are dark blue and feature in-seat power outlets.

  • What is the cheapest flight from St. Louis to Lisbon?

    In the last 3 days, the lowest price for a flight from St. Louis to Lisbon was $309 for a one-way ticket and $495 for a round-trip.

  • Do I need a passport to fly between St. Louis and Lisbon?

    A passport is required to fly from St. Louis to Lisbon.

  • Which airports will I be using when flying from St. Louis to Lisbon?

    St. Louis and Lisbon are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Lisbon Humberto Delgado.

  • Which aircraft models fly most regularly from St. Louis to Lisbon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Lisbon?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Lisbon, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Lisbon, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Lisbon are Delta and United Airlines. With an average price for the route of $884 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $992 and an overall rating of 7.4.

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

    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 Lisbon.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon 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 Lisbon?

    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 Lisbon with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and LIS can sometimes prove cheaper using this method.

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

    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 Lisbon from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Lisbon

  • British Airways one-stop flights from St. Louis Lambert International Airport (STL) to Lisbon Humberto Delgado Airport (LIS) have layovers in Philadelphia. American Airlines one-stop flights, and Iberia Airlines have layovers in Philadelphia. United Airlines' one-stop flights on the route have layovers in Toronto, while Lufthansa Airlines have layovers in Frankfurt.
  • Iberia Airlines can enjoy a wide variety of entertainment options offered on board. Stats come with screens with various films, music, and videos. Some crafts come with 4k touch screens where you can connect your headsets via Bluetooth.
  • Iberia Airlines provides a Gastrobar service with a varied selection of savory snacks, desserts, and alcoholic beverages where economy-class travelers can request meals. Business and first-class travelers get freshly prepared meals with at-seat service.
  • First-class and business-class travelers of American Airlines will find the American Airlines Admiral Club at STL. You can find it on the airside between Concourse B and C. Economy class travelers of American Airlines can purchase a lounge pass to access the lounge. It provides beverages, workstations, hotspot printing, and personal reservation assistance.
  • Families traveling together can book seats in advance at extra costs. If you do not reserve seats in advance, you may have to sit based on seat availability. Executive Club Gold, Silver, and Bronze Members can choose seats for everyone for free.

Reviews of the top 5 airlines serving from St. Louis to Lisbon

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Lisbon? 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.
7.4
United AirlinesOverall score based on 9218 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

2.0 MediocreJames, Jan 2026
ORD - MSP
Read more United Airlines reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

It would be nice to have some low carb options in the snacks.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Flight cancellations, delays, mass confusion and disorganization! That’s Air Canada for you, nothing new. I would have chosen a different airline if it were an option, and Air Canada continues to prove they don’t care about their customers.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

Our biggest complaint about Air Canada is that if you don’t like your seat during check-in, there’s a fee to move elsewhere. On our flight from YUL to FFL, we were charged to change seats—just regular seats. What’s maddening is that the plane wasn’t even full; there were even a few people sleeping in the middle row sections (entire rows, completely empty), using them as beds. In my opinion, charging passengers for seat changes is a cash grab by Air Canada. They are definitely not the airline they were back in the day. I suppose they need to gouge the consumer now that they pay their attendants while on ground. One out of 10.

Nothing specific. Cabin temperature was too high for some reason.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

Flight cancelled, lost a day of travel where we were trying to meet friends we couldn't meet. Iberia website is very difficult to navigate and has lots of dead links. If you do not speak Spanish it is even harder. Tried communicating on their WhatsApp and that was also close to impossible. We were told we'd be compensated 150EU's for this cancelled flight but there is no avenue towards rectifying this issue. I've had to take it up with my credit card to contest the charges and not pay for a flight that didn't happen but doubt I will ever be reimbursed for my two Ubers to the airport where we never even departed or the 150EU's we were told we would receive. I would never fly Iberia again. Clown show.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

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

Information on your arrival and departure airports