$32 Cheap Flights to Union , MO

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How much is the cheapest flight to Union?

Prices were available within the past 7 days and start at $32 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 7 - Sat, May 11
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 6 hours ago
$108
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, May 7 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, May 11, priced at $108 found 6 hours ago
Frontier Airlines
Sun, May 5 - Sat, May 11
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$118 Roundtrip, found 6 hours ago
$118
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sun, May 5 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, May 11, priced at $118 found 6 hours ago
Frontier Airlines
Tue, May 21 - Wed, May 29
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$127 Roundtrip, found 14 hours ago
$127
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Tue, May 21 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Wed, May 29, priced at $127 found 14 hours ago
Frontier Airlines
Tue, May 7 - Wed, May 8
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$134 Roundtrip, found 6 hours ago
$134
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, May 7 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Wed, May 8, priced at $134 found 6 hours ago
Spirit Airlines
Tue, May 21 - Tue, May 28
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$186 Roundtrip, found 1 day ago
$186
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, May 21 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Tue, May 28, priced at $186 found 1 day ago

Find Your Flights to Union STL

Cheap flights to Union (STL)

Get started finding a cheap flight to Union on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Union.

Roundtrip prices range from $53 - $186, and one-ways to Union start as low as $32.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Union (STL)

You have several options for which airline you choose to travel with to Union. There are 10 airlines flying into STL: Frontier Airlines, Spirit Airlines. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to Union (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in May and in May for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

Where can I learn more about changing or canceling my flight to Union?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
How do I find cheap flights to Union that have flexible change policies?
At Expedia, we’ve been channeling our inner Olympic gymnast to get you the most flexible fares around. Just click on “No change fee” under the filter subheading “Flexible change policies” to find your ideal flight to Union.
What is the name of Union's airport?
If you’re traveling 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?
A flight to Union means landing at STL. Disembark the plane, grab your bags and you’ll be 40 mi from the downtown area.
How many airlines fly to Union?
There are a total of 12 airlines connecting Union with 64 airports globally.
How many nonstop flights are there to Union?
Planning an awesome Union getaway is child’s play when there are 1,371 nonstop flights every week to choose from.
Where are the most popular flights to Union departing from?
Flights to Union departing from Chicago, New York and Dallas airports are very popular.
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 vacation, listen up! As every experienced traveler 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 favorite 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.
  • Traveling with your favorite 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
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Sun Country Airlines, United
Roundtrip price
$108
Popular airline
Delta

Trending flights to Union

Prices were available within the past 7 days and start at $32 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 7 - Tue, May 7
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$53 Roundtrip, found 2 days ago
$53
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 7 from Denver Intl. to Lambert-St. Louis Intl., returning Tue, May 7, priced at $53 found 2 days ago
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