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Cheap Flights from St. Louis to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
London
London1 stop$697
Edinburgh
Edinburgh2 stops$786
Manchester
Manchester2 stops$862
Birmingham
Birmingham2 stops$799
Belfast
Belfast1 stop$874
Inverness
Inverness2 stops$1,373
Aberdeen
Aberdeen2 stops$1,001
Leeds
Leeds2 stops$1,152
London
London1 stop$697
Edinburgh
Edinburgh2 stops$786
Manchester
Manchester2 stops$862
Birmingham
Birmingham2 stops$799
Belfast
Belfast1 stop$874
Inverness
Inverness2 stops$1,373
Aberdeen
Aberdeen2 stops$1,001
Leeds
Leeds2 stops$1,152
Booking Insights

Price, demand and travel trends for St. Louis to the United Kingdom flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from St. Louis to the United Kingdom cheaper or more expensive than last year?

Fares from St. Louis to the United Kingdom are running about 9% higher than they were around this time last year, averaging $994 round-trip.

What are the cheapest fares from St. Louis to the United Kingdom right now?

Here are the cheapest round-trip fares from St. Louis to the United Kingdom on KAYAK in the last week:

• London Gatwick (LGW) from $697
• Edinburgh Turnhouse (EDI) from $786
• Birmingham (BHX) from $799
• Glasgow Intl (GLA) from $859
• Manchester (MAN) from $862

What’s the cheapest month to fly from St. Louis to the United Kingdom?

February is the cheapest time of year to fly, with average fares of $781. Prices are highest in June, when average flight costs increase to around $1,392.

When is the best time to book flights from St. Louis to the United Kingdom?

Book your flights 24 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 26% compared to booking last-minute (within 2 weeks of departure).

Which airport in the United Kingdom is the cheapest to fly to from St. Louis?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into the United Kingdom are:

• Belfast City (BHD) (avg. price $714)
• Inverness (INV) (avg. price $722)
• London Gatwick (LGW) (avg. price $734)

What’s the cheapest day to fly from St. Louis to the United Kingdom?

Monday tends to be the cheapest day to fly from St. Louis to the United Kingdom, while Saturday is the most expensive. Fares run about 17% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from St. Louis to the United Kingdom?

Data from the past 12 months shows it's cheapest to fly to the United Kingdom during the evening with average prices of $970. The night is the most expensive time to fly, with average prices of $1,069.

Key details for St. Louis to the United Kingdom flights

Low season

January

Cheapest flight

$314
Beat the crowds with an average 46% drop in travelers.
The most popular month to fly with an average 54% increase in travelers.
One-way flight from St. Louis to Edinburgh

Your St. Louis to the United Kingdom flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from St. Louis to the United Kingdom?

    Yes. Fares from St. Louis to the United Kingdom are low right now. As a rule of thumb, a round-trip under $787 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from St. Louis to the United Kingdom?

    Over the past 12 months, round-trip fares from St. Louis to the United Kingdom have ranged from $787 to $1,317.

  • What are the main airports serving the United Kingdom?

    The United Kingdom has 63 airports. The three busiest are London Heathrow (LHR) (62% of arrivals), Edinburgh Turnhouse (EDI) (17%) and Manchester (MAN) (11%).

  • What airlines fly nonstop from St. Louis to the United Kingdom?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from St. Louis to the United Kingdom. One-stop options include:

    • Delta
    • American Airlines
    • United Airlines

  • Is it cheaper to fly with a layover from St. Louis to the United Kingdom?

    Yes. Nonstop flights from St. Louis to the United Kingdom average $1,050 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Dallas/Fort Worth (DFW) (avg. price $917)
    • Chicago O'Hare Intl (ORD) (avg. price $980)
    • London Heathrow (LHR) (avg. price $1,011)

  • How often are flights from St. Louis to the United Kingdom delayed and what's the average delay?

    18% of flights on this route are delayed by at least 15 minutes. The average delay is 1h 54m.

  • Which cabin classes are available on flights from St. Louis to the United Kingdom?

    On flights from St. Louis to the United Kingdom you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in the United Kingdom?

    KAYAK travelers' favorite landmarks in the United Kingdom include:

    • Hyde Park
    • Buckingham Palace

Your guide to booking St. Louis to the United Kingdom flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 24 weeks before your trip. KAYAK data shows fares in this window are around 26% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Monday is usually the cheapest. Flights on Saturday cost about 17% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Belfast City (BHD) is the cheapest airport to fly into from St. Louis. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in London, which is the most popular destination in the United Kingdom. From there, it's easy to continue on to other popular destinations such as Edinburgh, Glasgow and Manchester.
  • If you want the shortest trip, choose the St. Louis to the United Kingdom nonstop route. If you'd rather save money, the route via Dallas/Fort Worth (DFW) is usually the cheapest.

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

 
Need help choosing which airline to fly with from St. Louis to the United Kingdom? 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.
7.8
DeltaOverall score based on 8696 reviews
8.5Crew
7.8Entertainment
7.8Comfort
8.1Boarding
7.2Food
Airline reviews

The flight was delayed and passengers were told that they will miss connections as flight may get 40-55 min late.

2.0 MediocreAbhay, Oct 2026
Read more Delta reviews

The flight was delayed and passengers were told that they will miss connections as flight may get 40-55 min late.

The flight was delayed and knowing I was going to miss my connection, nothing was done proactively to try and get me rebooked. It was an act of congress to do so. This is not on the crew, but on the experience itself

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

Requested for warm or hot water because of throat pain, it was denied. The entertainment system was hung, requested the crew to turn it off, instead of turning it off they rebooted the device. It was stuck again, no one bothered to check.

A couple flight attendants in business class had bad attitudes and provided poor service. They did provide drinks or refill drinks. They talked to certain passengers for long periods of time and ignored others.

Great Brasilia aircraft - not a Boeing 757 like the next part of the flight. Flight from MCI to IAD was great, on-time, comfortable, did I mention that? The flight from IAD to EDI was painful. One of the reasons I won't fly United again? Boeing 757, with a seat pitch and material that was horrendous. Worst aircraft ever, made worse by United sardine-can tight seating. Oh, and the connection window, 45 minutes, really? At IAD, in different concourses? What idiot came up with that flight scenario? Happily, (for me and my travel insurance people) the flight was late (reminiscent of American Airlines). The crew was professional and courteous.

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

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.

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.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

Older interior meant less luggage storage space. Service was good. I was in business class. I receive better service from other carriers

It was pretty good. It was my first time using the airline I believe but it was a relatively pleasant experience.

Boarded on time and arrived early. Overall quick flight. Snack and beverage offered.

Good but I don’t received my bags yet is been 5days still no update

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Friendlier staff who are nice to the elderly who need assistance

Service was great. Flight was delayed an hour which made our connection very tight and stressful. But we fortunately made it.

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

I appreciate the fact that the flight took off and landed on time What I didn’t like they never offer a snack eg nuts/cookies/chips

Staff in first class seemed to struggle to provide service to both sections. I didn’t get breakfast though I requested it. I only got coffee after asking the opposite side flight attendant and then could never see them to request a bottle of water.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

I really enjoyed the flight…and food and the hospitality but didn’t get the food I requested for.

The plane was ancient, and its technology was in disrepair. None of the charging stations worked, and the screens were barely functioning.

It was my experience w Kayak that was negative. I’m never using kayak again

I washed attendant for assistance and she never got back to me. I asked her a second time and she said she would check. She never did. The flight was over an hour late taking off No food service was offered despite over 4 hours on the flight

I chose seating based on me being 6’3 and they changed planes I guess bc I got 2 random Seats that were middle and window and vert cramped and uncomfortable for a long flight….should have been able to get same seating just different aisle maybe especially since we picked them and weren’t random

Liked that our agent at check in changed our seats to allow us to have more space.

Check on was very hard. I believe my seats had been selected when I booked, but when I checked in I had to select seats. My previous pre assigned seats were no longer showing and I had to take seats I did not want. Check in took me forever. I also had to pay an additional 22/seat when I had already paid. Lastly thought I had pre paid for a checked bag., but that did not show up so I had to pay for a checked bag. 75.00????

Our flight from ORD was cancelled and BA rebooked is on a flight that originated before the time that they booked us on it. They did not realize we were already arrived in Chicago. Then American Airlines helped us get checked in to the new flight (the one BA assigned to us) which flight we did take although it was delayed about 2 hours, and our assigned seats that we paid for - on the original flight- were lost we did at least get to sit together. It was not too painful for all the changes and we made it to the UK alright though all in all with all the delays and cancellations the flight took about 20 hours to get us here.

though there was space in the cabin they asked us to check in our trolleys. As a result lots of things arrived damaged in Larnaca. They were fragile. When we asked the attendants why that.....they said talk to the captain!!! Unbelievable!

Boarding ,checking in was easy and quick . Comfort was not good.

More options for your flight from St. Louis to the United Kingdom

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