Search Cheap Flights to
Union

Search 400 airlines and 321,000 hotels worldwide.

Stop Planning & Start Exploring

FREE 24 hour cancellation on most flights

Union Flights as Low as $84

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Frontier Airlines
Thu, Nov 14 - Wed, Nov 20
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$84 Roundtrip, found 17 hours ago
$84
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Thu, Nov 14 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Wed, Nov 20, priced at $84 found 17 hours ago
Frontier Airlines
Mon, Nov 25 - Wed, Dec 4
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$85 Roundtrip, found 4 days ago
$85
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Nov 25 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Wed, Dec 4, priced at $85 found 4 days ago
Spirit Airlines
Sat, Nov 16 - Wed, Nov 20
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$97 Roundtrip, found 1 hour ago
$97
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sat, Nov 16 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Wed, Nov 20, priced at $97 found 1 hour ago
Frontier Airlines
Tue, Oct 22 - Tue, Oct 29
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$116 Roundtrip, found 14 hours ago
$116
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Tue, Oct 22 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Tue, Oct 29, priced at $116 found 14 hours ago
Frontier Airlines
Tue, Oct 15 - Tue, Oct 22
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$118 Roundtrip, found 4 days ago
$118
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Oct 15 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Oct 22, priced at $118 found 4 days ago
Frontier Airlines
Thu, Nov 7 - Sat, Nov 16
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$118 Roundtrip, found 2 days ago
$118
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Nov 7 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Nov 16, priced at $118 found 2 days ago
Frontier Airlines
Sat, Nov 16 - Mon, Nov 18
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$118 Roundtrip, found 1 day ago
$118
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Nov 16 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Mon, Nov 18, priced at $118 found 1 day ago
Frontier Airlines
Mon, Oct 28 - Sat, Nov 2
PHL
Philadelphia Intl.
STL
Lambert-St. Louis Intl.
$118 Roundtrip, just found
$118
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Oct 28 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sat, Nov 2, priced at $118 just found
Bargain Flight
Thu, Oct 10 - Sun, Oct 13
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$173 Roundtrip, found 6 days ago
$173
Roundtrip
found 6 days ago
Select Bargain Flight flight, departing Thu, Oct 10 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Sun, Oct 13, priced at $173 found 6 days ago
Bargain Flight
Tue, Dec 24 - Sun, Dec 29
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$187 Roundtrip, found 6 hours ago
$187
Roundtrip
found 6 hours ago
Select Bargain Flight flight, departing Tue, Dec 24 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Sun, Dec 29, priced at $187 found 6 hours ago
Southern Airways Express
Fri, Nov 8 - Sun, Nov 10
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$200 Roundtrip, found 1 day ago
$200
Roundtrip
found 1 day ago
Select Southern Airways Express flight, departing Fri, Nov 8 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sun, Nov 10, priced at $200 found 1 day ago
American Airlines
Thu, Oct 10 - Sat, Oct 12
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$200 Roundtrip, found 3 days ago
$200
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 10 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Sat, Oct 12, priced at $200 found 3 days ago
Delta
Sat, Nov 16 - Mon, Nov 18
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 16 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Mon, Nov 18, priced at $203 found 1 day ago
Delta
Sat, Oct 12 - Sat, Oct 19
DAL
Love Field
STL
Lambert-St. Louis Intl.
$232 Roundtrip, found 15 hours ago
$232
Roundtrip
found 15 hours ago
Select Delta flight, departing Sat, Oct 12 from Love Field to Lambert-St. Louis Intl., returning Sat, Oct 19, priced at $232 found 15 hours ago
Alaska Airlines
Thu, Nov 14 - Mon, Nov 18
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$258 Roundtrip, found 12 hours ago
$258
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Thu, Nov 14 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Mon, Nov 18, priced at $258 found 12 hours ago
Bargain Flight
Wed, Sep 25 - Sat, Sep 28
GSP
Greenville-Spartanburg Intl.
STL
Lambert-St. Louis Intl.
$273 Roundtrip, found 12 hours ago
$273
Roundtrip
found 12 hours ago
Select Bargain Flight flight, departing Wed, Sep 25 from Greenville-Spartanburg Intl. to Lambert-St. Louis Intl., returning Sat, Sep 28, priced at $273 found 12 hours ago

Cheap Flights to Union

Fall in love at first flight with your vacation to Union by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to Union on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in Union, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to Union

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Union with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the STL airport.

What is the cheapest month to fly to Union?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to Union are in November, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to Union?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 13 to choose from for your flight to Union.

What airport is best to fly into Union?

When you’re planning your trip to Union, convenience is the name of the game. Luckily, Union Spirit of St. Louis Airport is nearby so you can deplane and get going on checking off everything on your Union must-do list.

How much are flights to Union?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to Union on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $84, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to Union?

The trick to saving a stack of cash on your flight to Union? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $84 right now, why wait?

Union Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$84

Last Minute Hotel Deals in Union

Super 8 by Wyndham Union
Super 8 by Wyndham Union
2 out of 5
1015 East Main Street, I44 Exit 247 Hwy 50, Union, MO
The price is $87 per night from Sep 30 to Oct 1
$87
includes taxes & fees
Sep 30 - Oct 1
Book a stay at this business-friendly hotel in Union. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms ...
8/10 Very Good! (544 reviews)
Won’t be disappointed
"Lady at the desk was very nice and accommodating! Definitely old school service. Room was clean and comfortable. AC could have worked a little better only bc I like it super cold when sleeping. Good water pressure. Excellent breakfast but ran out. For the price I have no complaints."

Reviewed on Jul 28, 2024

Super 8 by Wyndham Union
The Wildwood Hotel
The Wildwood Hotel
3.5 out of 5
2801 Fountain Pl, Wildwood, MO
The price is $107 per night from Sep 29 to Sep 30
$107
includes taxes & fees
Sep 29 - Sep 30
Stay at this 3.5-star business-friendly hotel in Wildwood. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the convenient ...
8.8/10 Excellent! (1,392 reviews)
"Very nice establishment."

Reviewed on Sep 17, 2024

The Wildwood Hotel
Holiday Inn St. Louis West Six Flags, an IHG Hotel
Holiday Inn St. Louis West Six Flags, an IHG Hotel
3 out of 5
4901 Six Flags Rd, Eureka, MO
The price is $166 per night from Sep 24 to Sep 25
$166
includes taxes & fees
Sep 24 - Sep 25
Stay at this 3-star family-friendly hotel in Eureka. Enjoy free WiFi, free parking, and breakfast (surcharge). Our guests praise the pool and the restaurant ...
8.6/10 Excellent! (999 reviews)
"Love the pool and games the breakfast was amazing Your showers suck the heads are cheap and the water has no pressure and it goes hot a d cold the whole time whike u take shower its sucks"

Reviewed on Sep 9, 2024

Holiday Inn St. Louis West Six Flags, an IHG Hotel
Pinemark Inn & Suites
Pinemark Inn & Suites
2 out of 5
866 South Outer Road, St. Clair, MO
The price is $142 per night from Sep 23 to Sep 24
$142
includes taxes & fees
Sep 23 - Sep 24
Stay at this hotel in St. Clair. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the pool in our reviews. Popular attraction ...
9.4/10 Exceptional! (1,001 reviews)
"They were very clean and excellent pricing. Loved the decor when we walk in felt very welcoming."

Reviewed on Sep 18, 2024

Pinemark Inn & Suites
Super 8 by Wyndham Eureka/Six Flags Nearby
Super 8 by Wyndham Eureka/Six Flags Nearby
2 out of 5
1733 W 5th St, Eureka, MO
The price is $72 per night from Oct 20 to Oct 21
$72
includes taxes & fees
Oct 20 - Oct 21
Stay at this hotel in Eureka. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms in our reviews. Popular ...
6.8/10 (1,002 reviews)
"The only thing that I would say that thr room needed was hair dryer. The breakfast could be improved just a little."

Reviewed on Sep 17, 2024

Super 8 by Wyndham Eureka/Six Flags Nearby
Super 8 by Wyndham St. Clair MO
Super 8 by Wyndham St. Clair MO
2 out of 5
1010 S Outer Rd, St. Clair, MO
The price is $64 per night from Sep 26 to Sep 27
$64
includes taxes & fees
Sep 26 - Sep 27
Stay at this hotel in St. Clair. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attraction Indian ...
7/10 Good! (759 reviews)
"Right off the highway exit. Great location for long haul drivers."

Reviewed on Sep 18, 2024

Super 8 by Wyndham St. Clair MO
Comfort Inn Near Six Flags St. Louis
Comfort Inn Near Six Flags St. Louis
2.5 out of 5
1320 Thornton St, Pacific, MO
The price is $105 per night from Oct 8 to Oct 9
$105
includes taxes & fees
Oct 8 - Oct 9
Book a stay at this business-friendly hotel in Pacific. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
8.2/10 Very Good! (723 reviews)
"No comment!"

Reviewed on Sep 19, 2024

Comfort Inn Near Six Flags St. Louis
Quality Inn Near Six Flags St. Louis
Quality Inn Near Six Flags St. Louis
2.5 out of 5
1400 W Osage St, Pacific, MO
The price is $113 per night from Sep 23 to Sep 24
$113
includes taxes & fees
Sep 23 - Sep 24
Book a stay at this business-friendly hotel in Pacific. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
8.2/10 Very Good! (275 reviews)
"Don’t force me to say stuff. I hate that!"

Reviewed on Aug 12, 2024

Quality Inn Near Six Flags St. Louis
See all 335 properties in Union
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.