Cheap Flights To St. Louis 2025

St. Louis Flights as Low as $299

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Aug 4 - Tue, Aug 12
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$299 Roundtrip, found 1 day ago
$299
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 4 from Los Angeles - Ontario Intl. to MBS Intl., returning Tue, Aug 12, priced at $299 found 1 day ago
Delta
Mon, Aug 4 - Sun, Aug 10
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$384 Roundtrip, found 1 day ago
$384
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 4 from Los Angeles - Ontario Intl. to MBS Intl., returning Sun, Aug 10, priced at $384 found 1 day ago
Delta
Sat, Aug 2 - Tue, Aug 12
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$432 Roundtrip, found 1 day ago
$432
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Aug 2 from Los Angeles - Ontario Intl. to MBS Intl., returning Tue, Aug 12, priced at $432 found 1 day ago
Delta
Thu, Aug 7 - Tue, Aug 12
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$434 Roundtrip, found 1 day ago
$434
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Aug 7 from Los Angeles - Ontario Intl. to MBS Intl., returning Tue, Aug 12, priced at $434 found 1 day ago
Delta
Sun, Aug 3 - Sun, Aug 10
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$469 Roundtrip, found 1 day ago
$469
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Aug 3 from Los Angeles - Ontario Intl. to MBS Intl., returning Sun, Aug 10, priced at $469 found 1 day ago
Delta
Sat, Aug 2 - Sun, Aug 10
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$517 Roundtrip, found 1 day ago
$517
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Aug 2 from Los Angeles - Ontario Intl. to MBS Intl., returning Sun, Aug 10, priced at $517 found 1 day ago
Delta
Thu, Aug 7 - Sun, Aug 10
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$519 Roundtrip, found 1 day ago
$519
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Aug 7 from Los Angeles - Ontario Intl. to MBS Intl., returning Sun, Aug 10, priced at $519 found 1 day ago
Delta
Mon, Aug 4 - Sat, Aug 9
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$529 Roundtrip, found 1 day ago
$529
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 4 from Los Angeles - Ontario Intl. to MBS Intl., returning Sat, Aug 9, priced at $529 found 1 day ago
Delta
Fri, Aug 8 - Sat, Aug 9
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$538 Roundtrip, found 1 day ago
$538
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Aug 8 from Los Angeles - Ontario Intl. to MBS Intl., returning Sat, Aug 9, priced at $538 found 1 day ago
United
Sun, Aug 3 - Sat, Aug 9
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$561 Roundtrip, found 1 day ago
$561
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 3 from Los Angeles - Ontario Intl. to MBS Intl., returning Sat, Aug 9, priced at $561 found 1 day ago
United
Thu, Aug 7 - Sat, Aug 9
ONT
Los Angeles - Ontario Intl.
MBS
MBS Intl.
$566 Roundtrip, found 1 day ago
$566
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 7 from Los Angeles - Ontario Intl. to MBS Intl., returning Sat, Aug 9, priced at $566 found 1 day ago

Flight Travel Guide to St. Louis

No matter how much you fight the travel bug, sometimes there's only one solution—to hop on the next plane to St. Louis. AARP Travel Center Powered by Expedia® is here to help you cure that bug with great deals on flights and activities. With the best rates from Expedia combined with members-only discounts, AARP Travel offers members the best price in travel, guaranteed.

As an AARP member, you'll have the opportunity to take advantage of exclusive rates on:

  • Hotels
  • Car rentals
  • Flights
  • Waived booking fees on flights

If you've got a more flexible schedule, we will have more deals to show you. In other words, you'll have a better chance of finding that affordable flight you've been looking for.

Transportation at the St. Louis Airport

Once you've reserved plane tickets to St. Louis, you may want to book a rental car so you can get around on your own. You can book St. Louis rental cars under our cars tab and get into the car right when you step outside. If you'd prefer public transportation, check out the Metropolitan Transit System bus, or if there's trolleys or Amtrak stations nearby.

St. Louis Activities

If you aren't sure where to start, we can help you with that too. Not to worry—there's lots to do in this city. No matter what you decide to do with your time, you're sure to have fun in this city.

If you're looking for some fun activities to do in St. Louis, make sure you check out our "Things to Do in St. Louis" page for activities and excursions for the whole crew.

Book Your Hotel in St. Louis

St. Louis has accommodation options in the area, so you'll have no issues finding a place to stay close to all the things you want to see. If you need to stay close to the airport, or another attraction in St. Louis, check out our hotel listings page. No matter where you stay, just remember that you'll get the best price out there when you stay with AARP.

Planning Your Visit to St. Louis

Once you have planned your travel dates, allow us here at AARP Travel to connect you with cheap tickets to St. Louis. Do not wait a second longer—book your airfare today and land in St. Louis tomorrow.