£587 Cheap Flights to Union

View £587 flight on Sun, 9 Nov 2025Opens in a new window

Popular airlines to Union

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Cheap round-trip flights to Union

Prices were available within the past 7 days and start at £587 for one-way flights and £432 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Mon, 15 Sep - Tue, 30 Sep
DUB
Dublin
STL
St. Louis
£432 Return, found 4 days ago
£432
Return
found 4 days ago
Select Scandinavian Airlines flight, departing Mon, 15 Sep from Dublin to St. Louis, returning Tue, 30 Sep, priced at £432 found 4 days ago
British Airways
Wed, 24 Sep - Wed, 8 Oct
EDI
Edinburgh
STL
St. Louis
£632 Return, found 4 days ago
£632
Return
found 4 days ago
Select British Airways flight, departing Wed, 24 Sep from Edinburgh to St. Louis, returning Wed, 8 Oct, priced at £632 found 4 days ago
Lufthansa
Fri, 21 Nov - Sat, 29 Nov
DUB
Dublin
STL
St. Louis
£633 Return, found 2 days ago
£633
Return
found 2 days ago
Select Lufthansa flight, departing Fri, 21 Nov from Dublin to St. Louis, returning Sat, 29 Nov, priced at £633 found 2 days ago
KLM
Mon, 6 Oct - Thu, 16 Oct
DUB
Dublin
STL
St. Louis
£642 Return, found 5 days ago
£642
Return
found 5 days ago
Select KLM flight, departing Mon, 6 Oct from Dublin to St. Louis, returning Thu, 16 Oct, priced at £642 found 5 days ago
Austrian Airlines
Fri, 14 Nov - Mon, 17 Nov
LHR
London
STL
St. Louis
£644 Return, found 4 days ago
£644
Return
found 4 days ago
Select Austrian Airlines flight, departing Fri, 14 Nov from London to St. Louis, returning Mon, 17 Nov, priced at £644 found 4 days ago

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

August is typically the cheapest month to fly

From £129 - £524 per traveller.

Graph displaying average flight prices per month

Expedia flights to Union

Searching for cheap flights to Union? No travel company presents more choices than Expedia if you're looking to compare flights to Union. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Missouri. Expedia provides the cheapest flights to many destinations in Missouri and you may find even greater savings if you combine your flight with a hotel stay in Union.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Union for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Union flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Frequently asked questions

What is the name of Union's airport?
If you're travelling by plane, you won't have to worry which airport to fly into. Union has just one -- Lambert-St. Louis Intl. Airport (STL).
What airport is best to fly into Union?
Travellers from all around the world go through Lambert-St. Louis Intl. Airport (STL) each day. Step off the plane, collect your luggage and you'll be 40 mi from the centre of Union.
How many airlines fly to Union?
There are a total of 12 airlines connecting Union with 64 airports globally.
Which airlines fly to Union?
United Airlines and American Airlines frequently fly to Union. Hopping on a United Airlines flight from Chicago is one of the most popular ways to get there.
How many nonstop flights are there to Union?
Planning an awesome Union escape is easy when there are 1,319 nonstop flights every week to choose from.
Where are the most popular flights to Union departing from?
The most popular flights to Union take off from Denver, Dallas and Chicago airports.
How long is the flight to Union Airport?
Which airport you depart from determines how much of the in-flight entertainment you'll get to see. From Chicago to Union, the average flight time is 1 hour and 15 minutes. From Queens Village it's more like 2 hours and 51 minutes, and from Denver it's 1 hour and 59 minutes.
How to book the cheapest flight to Union?
If you want to save some cash on your Union holiday, listen up! As every experienced traveller knows, don't book at the very last minute. Fares are generally more expensive just prior to the departure date. Another terrific way to land the most affordable fare is to research all options. If your destination has several airports, be sure to research the cost of flying into a less busy terminal. Lastly, be ready to book quickly if you find a great price. It might not be available for long! With a bit of know-how and some good fortune, the perfect airfare will be yours.
How to survive the flight to Union?
We've pulled together all the info you need to make your journey as pain-free as possible. Follow our tips and tricks and you'll be zooming through airport security and seeing the best of Union before you know it.What to pack in your hand luggage:
  • First and foremost, pack in your passport, travel documents, wallet and daily medications. Next, you'll need some extra in-flight entertainment to help pass the time. A juicy book and a tablet filled with your favourite shows are some wonderful options. If you plan to take a short nap, a neck pillow and a pair of earplugs will also be useful. Finally, make room for a toothbrush and some deodorant to ensure you touchdown looking fresh and raring to go.

Do not pack the following items in your hand luggage:
  • Double-check that you don't have a pocket knife lurking in one of the compartments of your hand luggage. Other banned items include flammable or explosive substances, such as aerosol cans and bleach, and liquids and gels in containers larger than 3.4 ounces (100 milliliters).

What to wear on a flight:
  • The narrow aisles of an airplane are no fashion runway. Layer yourself up with comfortable clothes and pack a cardigan as it can get chilly in the cabin. Slightly roomy, flat shoes are always a good choice too.
  • Unfortunately, a risk of long-distance flying is developing deep vein thrombosis (DVT), a blood clotting condition caused by prolonged inactivity. To prevent this from happening, take every opportunity to wander around the cabin. Compression socks and tights are another easy way to help reduce this risk.

How to get through airport security fast when flying to Union?
Being prepared before you get to the airport can make your getaway to Union a breeze. Here are some top tips for a speedy journey past security:
  • Airport security personnel first need to know that you have a valid ID and matching travel documents before you can proceed any further. Have them in your hand, ready for inspection.
  • Next up, both you and your carry-on luggage must be X-rayed. To speed things up, remove anything that might trigger the alarms. Personal belongings like your jacket, belt and headphones will be required to go through the machine.
  • For just a few moments, you'll need to unplug from the digital world. Your laptop, phone and any other electronic devices also need to go through the scanner.
  • Travelling with your favourite cologne or perfume? Not a problem. As long as it's in a container no larger than 3.4 ounces (100 milliliters) and it's stored in a clear zip-close bag, it's OK to bring with you in your carry-on.
  • It's also likely that you'll be asked to take your shoes off to be X-rayed, so wearing lightweight sneakers is always a good idea.
  • Airlines won't allow any sharp items or pocket knives to come on board with you. If you need to bring these kinds of items, pack them safely in your checked luggage.

Flights to Union information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Return price
£431

Trending flights to Union

Prices were available within the past 7 days and start at £587 for one-way flights and £432 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, 24 Sep - Wed, 8 Oct
EDI
Edinburgh
STL
St. Louis
£632 Return, found 4 days ago
£632
Return
found 4 days ago
Select British Airways flight, departing Wed, 24 Sep from Edinburgh to St. Louis, returning Wed, 8 Oct, priced at £632 found 4 days ago
*Available to Expedia members.