STL - BUD

$482 Find Cheap Flights from St. Louis to Budapest

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 Budapest departing on 9/3. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Budapest

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Budapest, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Budapest, as well as popular online travel agencies
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Flights Deals

Cheap Flights from St. Louis to Budapest

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

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Budapest.
Discover the best prices for you by selecting your travel dates on KAYAK.
Air Canada Logo
1:30 pm - 2:05 pmSTL-BUD
41h 35m2 stops
Air Canada Logo
1:25 pm - 7:57 pmBUD-STL
37h 32m2 stops
$813Air Canada
Find Deal
Sun, Sep 7 - Sun, Sep 28
British Airways Logo
2:01 pm - 1:15 amSTL-BUD
28h 14m2 stops
British Airways Logo
6:00 pm - 4:10 pmBUD-STL
29h 10m2 stops
$815British Airways
Find Deal
Sun, Sep 14 - Sat, Sep 20
 Logo
3:30 pm - 6:20 pmSTL-BUD
19h 50m1 stop
 Logo
2:20 pm - 7:57 pmBUD-STL
36h 37m2 stops
Sun, Sep 7 - Sun, Sep 28
Lufthansa Logo
5:30 pm - 4:50 pmSTL-BUD
16h 20m2 stops
Lufthansa Logo
7:05 pm - 1:30 pmBUD-STL
25h 25m1 stop
$834Lufthansa
Find Deal
Sun, Sep 14 - Sat, Sep 20
Lufthansa Logo
3:30 pm - 6:20 pmSTL-BUD
19h 50m1 stop
Lufthansa Logo
7:05 pm - 1:30 pmBUD-STL
25h 25m1 stop
$919Lufthansa
Find Deal
Sun, Sep 14 - Sat, Sep 20
 Logo
4:05 pm - 8:45 amSTL-BUD
33h 40m2 stops
 Logo
1:25 pm - 2:55 pmBUD-STL
56h 30m2 stops
Sun, Oct 19 - Fri, Oct 24
United Airlines Logo
11:20 am - 10:50 amSTL-BUD
16h 30m2 stops
United Airlines Logo
2:20 pm - 3:47 pmBUD-STL
32h 27m2 stops
$1,250United Airlines
Find Deal
Wed, Jun 4 - Mon, Jul 14
Delta Logo
10:45 am - 11:45 amSTL-BUD
18h 00m2 stops
Delta Logo
6:20 am - 8:36 pmBUD-STL
21h 16m2 stops
$1,293Delta
Find Deal
Thu, Jun 5 - Tue, Jul 15
United Airlines Logo
8:05 am - 1:25 pmSTL-BUD
22h 20m2 stops
United Airlines Logo
6:00 am - 10:45 pmBUD-STL
23h 45m2 stops
$1,301United Airlines
Find Deal
Sat, May 31 - Tue, Jul 15
Delta Logo
10:45 am - 10:50 amSTL-BUD
17h 05m2 stops
Delta Logo
6:20 am - 5:08 pmBUD-STL
17h 48m2 stops
$1,419Delta
Find Deal
Thu, Jun 5 - Sat, Jul 19
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KAYAK's insights & trends for St. Louis to Budapest flights

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

What’s the cheapest day of the week to fly from St. Louis to Budapest?

The average price of all round-trip flights from St. Louis to Budapest clicked on KAYAK for each day over the last 12 months.

For St. Louis to Budapest, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Budapest back to St. Louis, the best deals are generally found on Thursday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Budapest, 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 Budapest is February, where tickets cost $715 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,566 and $1,340 respectively.

Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$482
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from St. Louis to Budapest

When to book flights from St. Louis to Budapest

Are your dates flexible? Find out the best times to travel from St. Louis to Budapest 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 Budapest

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

    In the last 3 days, the lowest price for a flight from St. Louis to Budapest was $482 for a one-way ticket and $813 for a round-trip.

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

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

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

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Budapest, also known as Budapest Ferenc Liszt Intl.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Budapest are United Airlines and Lufthansa. With an average price for the route of $1,033 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,096 and an overall rating of 6.7.

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

    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 Budapest.

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

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

    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 Budapest with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BUD 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 Budapest?

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

Top airlines flying from St. Louis to Budapest

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Budapest. 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 Budapest? 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 8696 reviews
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

10.0 ExcellentAnonymous, Apr 2025SFO - HKG
Read more United Airlines reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

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

Information on your arrival and departure airports

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