Cheap flights from St. Louis to the United Kingdom from $271
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to the United Kingdom departing on 7/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from St. Louis to United Kingdom
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to United Kingdom?
In general, April is the cheapest month to fly from St. Louis to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $751. If you aren’t able to travel to United Kingdom during the month of April, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $786.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart from St. Louis to United Kingdom is on a Wednesday when prices can be found for as low as $846. The most expensive day to fly to United Kingdom is Tuesday, with ticket prices averaging around $1,006.
What is the cheapest time of day to depart on your flight to United Kingdom?
According to our data, the cheapest time of day to fly to United Kingdom is in the morning. momondo users have found flights departing from St. Louis to United Kingdom in the morning for as low as $915. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly at noon, with an average ticket price of $958. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to United Kingdom?
You are more likely to see cheaper flights to United Kingdom from St. Louis when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $951 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from St. Louis for as low as $790 on momondo.
What is the cheapest airline that flies from Lambert-St Louis to United Kingdom?
Aer Lingus, Iberia, and British Airways are the most popular carriers operating from Lambert-St Louis to United Kingdom
What airlines fly to United Kingdom?
British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to United Kingdom from St. Louis according to our data. British Airways is the first choice among our users, with 36% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 11 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
Cheap St. Louis to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to United Kingdom
When did momondo last update prices for flights from Lambert-St Louis Airport to United Kingdom?
Prices for flights from Lambert-St Louis Airport to United Kingdom are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to United Kingdom?
There are 11 operators available for flights from Lambert-St Louis Airport to United Kingdom as of April 2025.
How old do you have to be to fly from Lambert-St Louis Airport to United Kingdom?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from St. Louis to United Kingdom
Compare and see reviews for airlines that fly from St. Louis to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $596 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $625 | Free Cancellation | Rating 7.0 9,035 reviews | |||
| PriceFrom $642 | Free Cancellation | Rating 7.4 8,619 reviews | |||
| PriceFrom $647 | Free Cancellation | Rating 6.6 6,718 reviews | |||
| PriceFrom $649 | Free Cancellation | Rating 6.7 6,966 reviews | |||
| PriceFrom $669 | Free Cancellation | Rating 7.3 1,328 reviews | |||
| PriceFrom $669 | Free Cancellation | Rating 7.8 1,323 reviews | |||
| PriceFrom $671 | Free Cancellation | Rating 7.0 2,658 reviews | |||
| PriceFrom $674 | Free Cancellation | Rating 7.4 637 reviews | |||
| PriceFrom $682 | Free Cancellation | Rating 8.0 7,897 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to United Kingdom?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to United Kingdom. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to United Kingdom with flexible booking policies on momondo?
momondo does allow users to show only those flights to United Kingdom from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to United Kingdom?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to United Kingdom.
I’m not ready to book a flight from St. Louis to United Kingdom right now. Can momondo alert me if prices change?
Yes. momondo can track prices for St. Louis to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.