Route guide
Cheap Flights from Phoenix to St. Louis: Book Airline Tickets
- Distance
- about 1,260 mi
- Typical flight time
- 2 h 45 min – 3 h 45 min
- Airports
- 1 × 1
- Time difference
- 1–2 h ahead
This page covers the practical side of flying between Phoenix and St. Louis: which airports to compare, how long the trip takes, and when it is busy. It works for either direction. For a price on your dates, ask a specialist.
Quick answer: Phoenix to St. Louis is about 1,260 miles (2,030 km) and a typical flight takes 2 h 45 min to 3 h 45 min. In winter, St. Louis is 1 hour ahead of Phoenix; in summer, St. Louis is 2 hours ahead of Phoenix. The gap changes because of daylight saving time. Phoenix has 1 airport to compare and St. Louis has 1.
Airport pairs to compare
Phoenix's main airport sits unusually close to the city center, which keeps the trip into town short. St. Louis has one main airport with a light rail link to downtown.
| Pair | Departure airport | Arrival airport |
|---|---|---|
| PHX to STL | Phoenix Sky Harbor International | St. Louis Lambert International |
About the airports
- PHX · Phoenix Sky Harbor International
Located only a few miles from downtown, with an automated train to light rail. - STL · St. Louis Lambert International
The main airport, northwest of downtown and linked to the city by MetroLink light rail.
Airlines with a major base at either end
- At Phoenix: American Airlines, Southwest Airlines
Airlines with a base at one end often connect through their hub. A specialist can compare nonstop and connecting options on your dates.
When to go and what to expect
Phoenix
Winter and spring are the popular, milder seasons. Summer highs routinely top 100°F, which is why fares often soften then.
St. Louis
Spring and fall are the most comfortable seasons. Summers are hot and humid, and winter can bring snow and ice.
How long is Phoenix to St. Louis?
At about 1,260 miles, Phoenix to St. Louis is a short-to-medium flight. Fares on routes this length are sensitive to the day of the week and the time of day, so check a few departure times before you settle.
Time zones and timing
Depending on daylight saving time, St. Louis is 1 to 2 hours ahead of Phoenix, so you land at a local time 1 to 2 hours later than departure time plus flight time would suggest. Plan your arrival day around local time at the destination.
Getting between the airport and town
Phoenix: The PHX Sky Train connects the terminals and the light rail, and ride-hail and rental cars are widely used.
St. Louis: MetroLink light rail runs from the airport to downtown St. Louis. Taxis, ride-hail and rental cars are also available.
Planning ground transport too? See our car rental guide.
Good to know
- Spring training baseball in February and March lifts demand. Arizona does not observe daylight saving time, which affects time differences with other states.
- Winter storms and summer thunderstorms are the usual causes of delays, so leave extra connection time in those seasons.
- Compare the total with bags included, not just the base fare. See baggage fees and taxes and fees.
Flying St. Louis to Phoenix?
This route guide works in both directions. For other trips, see all flights from Phoenix or all flights from St. Louis.
Frequently asked questions
How far is Phoenix from St. Louis?
The straight-line distance between the main airports is about 1,260 miles (2,030 km). Routes can be longer in practice because of air traffic and weather.
How long is a flight from Phoenix to St. Louis?
A typical scheduled flight takes roughly 2 h 45 min to 3 h 45 min in the air, depending on winds, the aircraft and the airports. Connecting itineraries take longer, and nonstop availability depends on the airline and dates.
Which airports can I use?
At Phoenix: PHX (Phoenix Sky Harbor International). At St. Louis: STL (St. Louis Lambert International). Ask for prices on more than one pairing.
Is there a time difference?
In winter, St. Louis is 1 hour ahead of Phoenix; in summer, St. Louis is 2 hours ahead of Phoenix. The gap changes because of daylight saving time.
When is the best time to fly from Phoenix to St. Louis?
In Phoenix: Winter and spring are the popular, milder seasons. Summer highs routinely top 100°F, which is why fares often soften then. In St. Louis: Spring and fall are the most comfortable seasons. Summers are hot and humid, and winter can bring snow and ice. Fares are usually highest in the busy periods described for each city, so flexible dates can help.
Which airlines should I compare for Phoenix to St. Louis?
Airlines with a major base at either end include American Airlines and Southwest Airlines. A specialist compares them with other carriers on your dates, since schedules and availability change.
Do you show fares on this page?
No. Fares change constantly, so we do not publish prices that might be out of date. A specialist checks live availability and confirms the full total, including taxes and bags, before you pay.
Route details updated October 18, 2026.