STL - BUD

$382 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 1/30. 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 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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Everything you should know

Cheapest round-trip
$646
Overall average: $1,106
Lufthansa
Sun 4/5Sun 4/12
STL - BUD • 2 stops
Cheapest one-way
$382
Multiple Airlines
Fri 1/30
STL - BUD • 3 stops
Top airlines
Lufthansa
Cheapest • from $646 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 41% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Budapest!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Budapest (STL-BUD)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Sun, Apr 5 - Sun, Apr 12
Lufthansa Logo
5:18 pm - 11:35 pmSTL-BUD
23h 17m2 stops
Lufthansa Logo
5:55 am - 1:30 pmBUD-STL
14h 35m1 stop
$646Lufthansa
Find Deal
Sun, Apr 5 - Sun, Apr 12
Lufthansa Logo
3:30 pm - 10:45 amSTL-BUD
12h 15m1 stop
Lufthansa Logo
5:55 am - 1:30 pmBUD-STL
14h 35m1 stop
$653Lufthansa
Find Deal
Sun, Apr 5 - Sun, Apr 12
American Airlines Logo
11:18 am - 1:20 pmSTL-BUD
19h 02m2 stops
American Airlines Logo
12:05 pm - 11:24 pmBUD-STL
18h 19m2 stops
$656American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
Lufthansa Logo
4:50 pm - 11:35 amSTL-BUD
12h 45m1 stop
Lufthansa Logo
5:55 am - 7:48 pmBUD-STL
20h 53m2 stops
$663Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
Multiple Airlines Logo
4:05 pm - 12:35 pmSTL-BUD
14h 30m2 stops
Multiple Airlines Logo
6:35 am - 3:24 pmBUD-STL
15h 49m2 stops
$666Multiple Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
4:05 pm - 9:10 pmSTL-BUD
23h 05m2 stops
United Airlines Logo
5:55 am - 2:18 pmBUD-STL
15h 23m2 stops
$667United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
4:50 pm - 6:05 pmSTL-BUD
19h 15m1 stop
United Airlines Logo
5:55 am - 3:21 pmBUD-STL
16h 26m2 stops
$673United Airlines
Find Deal
Wed, Nov 12 - Fri, Dec 12
Turkish Airlines Logo
5:24 pm - 8:15 amSTL-BUD
31h 51m2 stops
Turkish Airlines Logo
2:00 pm - 3:40 pmBUD-STL
32h 40m2 stops
$717Turkish Airlines
Find Deal
Wed, Nov 12 - Fri, Dec 12
Turkish Airlines Logo
5:24 pm - 8:15 amSTL-BUD
31h 51m2 stops
Turkish Airlines Logo
9:10 am - 3:40 pmBUD-STL
37h 30m2 stops
$718Turkish Airlines
Find Deal
Fri, Mar 6 - Sat, Mar 14
Multiple Airlines Logo
4:05 pm - 1:50 pmSTL-BUD
14h 45m2 stops
Multiple Airlines Logo
10:05 am - 2:55 pmBUD-STL
34h 50m1 stop
$741Multiple Airlines
Find Deal
Booking Insights

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 October, where tickets cost $616 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,592 and $1,434 respectively.

Good to know

Low seasonFebruary
Cheapest flight$382
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 52% increase in price.
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 $382 for a one-way ticket and $646 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?

    Star Alliance is the only airline alliance operating flights between St. Louis and Budapest.

  • 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 $1,102 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 $1,134 and an overall rating of 6.8.

  • 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.

Reviews of the 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 8999 reviews
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

10.0 ExcellentDr. Joseph, Oct 2025STL - ORD
Read more United Airlines reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Friendly and professional flight crew. Aside from departure delay after boarding, easy flight and smooth landing.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything went smoothly and the staff was very kind. I’m glad I purchased the extra leg room for my long flight; it was totally worth it. We were served 2 meals for a 9 hour flight which I was not expecting and they were very tasty. I appreciated them being vegetarian. Customs line in Munich was long; I had a choice to have a 1 hr 40 min layover or 2 hr 40 min layover; I took the longer layover which I was thankful for because my flight was delayed 30 minutes and there’s a good chance I would have missed my connecting flight. This was my very first international flight and I would fly Discover again without hesitation. Thank you for taking good care of me!

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

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