St. Louis

Cheap First Class flights to St. Louis

LAX — STL
May 4 — May 111
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Cheap first class flights to St. Louis in 2025

Find the latest flights to St. Louis in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data were last updated on April 29, 2025.

Average Price

$734

Cheapest Price

$519

Top Rated Airline

United Airlines

No. of Airlines

5

Arrival Airport

Lambert-St Louis Airport
Average for round-trip first class flights in April 2025
The lowest price for a first class flight ticket to St. Louis
Most popular airline to fly first class with to St. Louis in the past 7 days
Airlines that offer first class options for this route
Closest airport for this route

Find first class flight deals to St. Louis

Cheapest first class flights to St. Louis
Explore the most affordable first class flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on April 29, 2025.

Mon 6/97:49 pmBWI - STL
1 stop5h 10mAmerican Airlines
Wed 6/1111:47 amSTL - BWI
1 stop5h 35mAmerican Airlines
Deal found 4/28$497
Sat 6/78:40 amIAD - STL
Nonstop2h 16mUnited Airlines
Wed 6/118:15 amSTL - IAD
Nonstop2h 08mUnited Airlines
Deal found 4/28$499
Thu 5/295:40 amBWI - STL
1 stop4h 20mDelta
Sat 6/77:05 amSTL - BWI
1 stop4h 42mDelta
Deal found 4/28$559
Thu 5/299:40 amIAD - STL
1 stop4h 39mDelta
Wed 6/43:40 pmSTL - IAD
1 stop6h 55mDelta
Deal found 4/28$574
Mon 5/197:05 amDFW - STL
Nonstop1h 54mAmerican Airlines
Wed 5/287:05 pmSTL - DFW
Nonstop1h 55mAmerican Airlines
Deal found 4/28$587
Fri 5/306:40 pmBWI - STL
1 stop5h 05mUnited Airlines
Thu 6/55:00 amSTL - BWI
1 stop4h 13mUnited Airlines
Deal found 4/28$624

Travel insights for first class flights from USA to St. Louis

Get recent, data-driven insights about first class flights from USA to St. Louis including ideal travel times, pricing trends, and more.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Top 2 first class airlines flying to St. Louis

Explore the top four first class airlines operating flights to St. Louis. Find out more about these airlines and their offerings, including amenities, in-flight services, and customer reviews. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on April 29, 2025.
AirlineRatingFirst ClassPrice
DeltaPriceFrom $188First ClassRating
8.0
8.2

Boarding

7.9

Comfort

8.5

Crew

7.9

Entertainment

7.3

Food

Reviews

1 / 10
Comfortable, easy boarding, very friendly staff
American AirlinesPriceFrom $185First ClassRating
7.2
7.5

Boarding

7.2

Comfort

8.0

Crew

6.9

Entertainment

6.5

Food

Reviews

1 / 10
This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.

Frequently asked questions about St. Louis first class tickets

Find answers to common questions related to first class tickets for flights to St. Louis. Get information on booking, amenities, upgrade options, and more. This FAQ section was last updated on April 29, 2025.
  • What is the cheapest price for a First Class ticket to St. Louis?

    Looking for cheap deals? The cheapest price last booked, $519/person, was for a First Class flight ticket going from Washington, D.C. Reagan-National Airport to St. Louis. First Class flights usually cost $734 per person.

  • How many premium cabins does United Airlines have for flights to St. Louis?

    Travelers who want to experience premium cabins usually book through United Airlines, the most popular airline with flights to St. Louis. There are 2 premium cabins provided right now: Prem Economy Class and First Class.

  • What airlines can I book First Class flights to St. Louis with?

    Our travelers rated 2 as the most popular providers for First Class flights to St. Louis. Reminder: not every airline will have the exact same seats and premium services, even within the same cabin class.

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