Cheap flights from St. Louis to Flagstaff (STL - FLG)

STL — FLG
Oct 4 — Oct 111

The best prices from Lambert-St Louis to Flagstaff Pulliam are usually found in January or September, booked 17 days in advance, depart on a Tuesday or Wednesday and return on a Monday

How to find the cheapest flight from St. Louis (STL) to Flagstaff (FLG)

All the information you need to plan the best STL to FLG flight in 2022: compare St. Louis to Flagstaff flight prices with the expected peak season, weather and rainfall in Flagstaff.

STL - FLG

Price

$350 - $668

FLG

Temperature

32 - 71.6 °F

FLG

Rainfall

0.4 - 2.7 inches

Popular inAprilHigh demand for flights, 26% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 30% potential price drop
Average price$379Average for round-trip flights in September 2022
Round-trip from$350From Lambert-St Louis to Flagstaff Pulliam

What is the cheapest day to fly round-trip from St. Louis to Flagstaff?

Users have found that flying from St. Louis to Flagstaff on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from St. Louis to Flagstaff?

Travelers have found it’s best to book a flight 17 days in advance to save up to 5% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 17 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Flagstaff 1-2 weeks in advance for as low as $592, or $626 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Flagstaff?

January can be a great time to fly to Flagstaff from St. Louis with a flight ticket averaging about $498. Cheapflights users have found deals in the month of January for as cheap as $347. The most expensive prices can be found in the month of April.

When is the cheapest time to fly from St. Louis to Flagstaff (STL - FLG)?

It’s typically best to fly out from St. Louis to Flagstaff at noon. Doing so could potentially save you 21% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from St. Louis to Flagstaff in September, October 2022

The best prices found for STL to FLG flights for September, October
Oct 26 - Nov 2
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

2 stops

11h 53m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

1 stop

5h 12m
$402

American Airlines

Pick Dates

Deal found 26/9/22

Oct 26 - Nov 2
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

1 stop

6h 30m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

1 stop

5h 12m
$420

Multiple Airlines

Pick Dates

Deal found 26/9/22

Oct 26 - Nov 2
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

2 stops

12h 59m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

2 stops

20h 51m
$483

American Airlines

Pick Dates

Deal found 26/9/22

St. Louis to Flagstaff 2022 flight deals

Cheap flights to Flagstaff from St. Louis found for this year
Nov 1 - Nov 8
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

1 stop

6h 13m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

2 stops

29h 34m
$401

American Airlines

Pick Dates

Deal found 28/9/22

Oct 26 - Nov 2
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

2 stops

11h 53m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

1 stop

5h 12m
$402

American Airlines

Pick Dates

Deal found 26/9/22

Nov 1 - Nov 8
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

2 stops

11h 53m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

2 stops

29h 34m
$405

American Airlines

Pick Dates

Deal found 28/9/22

Cheap American Airlines flights from St. Louis to Flagstaff

Nov 1 - Nov 8
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

1 stop

6h 13m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

2 stops

29h 34m
$401

American Airlines

Pick Dates

Deal found 28/9/22

Oct 26 - Nov 2
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

2 stops

11h 53m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

1 stop

5h 12m
$402

American Airlines

Pick Dates

Deal found 26/9/22

Nov 1 - Nov 8
STL

Lambert-St Louis

FLG

Flagstaff Pulliam

2 stops

11h 53m
FLG

Flagstaff Pulliam

STL

Lambert-St Louis

2 stops

29h 34m
$405

American Airlines

Pick Dates

Deal found 28/9/22

Related info for your journey

Useful info, stats and facts about St. Louis to Flagstaff flights.

Which airlines flying from Lambert-St Louis to Flagstaff Pulliam have flexible cancellations due to COVID-19?

American Airlines and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from St. Louis to Flagstaff for under $500 on Cheapflights?

Yes, there are multiple flights from St. Louis to Flagstaff for under $500. The cheapest flight booked recently is on American Airlines for just $401, but on average you can expect to pay $500.

What is the cheapest airline to fly from St. Louis to Flagstaff round-trip?

Our cheapest airline available from St. Louis to Flagstaff is American Airlines. Our recent data shows that you can find tickets from as low as $401 on this airline. Users have found that American Airlines is 19% cheaper than the other options available to this destination.

What are the cheapest flights from St. Louis to Flagstaff?

Looking at all options, your cheapest flight can be booked for $396. While the most popular route (Lambert-St Louis - Flagstaff Pulliam) can be booked for $515 on average our data indicates $623 when flying from St. Louis to Flagstaff.

Alternative routes for St. Louis to Flagstaff

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from St. Louis to Flagstaff

The chart below displays the airlines Cheapflights users traveling from St. Louis to Flagstaff choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest$311Average$510FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$319Average$563FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights