DFW → STL

Find and Compare the Cheapest Ways to Fly from Dallas to St. Louis

Compare one-way, round-trip and flight + hotel packages from Dallas to St. Louis, a nonstop flight of about 1h 35m, with fares from around 125.

Dallas to St. Louis flight facts

Dallas to St. Louis is a domestic route covering about 550 miles, arriving at St. Louis Lambert International Airport (STL) in United States. Peak travel season in St. Louis runs June–August (mild, long sunny days), while November–March is usually the quietest and best-value time to visit. The cheapest fares we've tracked on this route include at least one stop.

Key facts for flights from Dallas to St. Louis
Departing fromDallas/Fort Worth International Airport (DFW)
Arriving atSt. Louis Lambert International Airport (STL)
Distance550 miles (885 km)
Nonstop flight timeAbout 1h 35m
Nonstop airlines seenNone in recent fares, expect 1 stop
Round-trip fares from$125 (estimate)
Cheapest monthsSeptember, February, January
Peak season in St. LouisJune–August
Cheapest hotel months in St. LouisNovember–March
Best time to book1 to 3 months ahead
Route info updatedOctober 16, 2026

When to visit St. Louis

  • Peak season

    June–August

    Mild, long sunny days

  • Shoulder season

    April–May & September–October

    Cool and crisp, fewer crowds

  • Off-peak season

    November–March

    Cold, damp and grey

Estimated round-trip fares by month, Dallas to St. Louis

Estimated lowest round-trip fare per month
MonthFares from
January$145
February$140
March$165
April$155
May$150
June$190
July$170
August$185
September$125
October$145
November$150
December$165

Flying from Dallas to St. Louis

Airlines Flying this Route

The cheapest fares we've tracked on this route include at least one stop. Ducoffs.com compares full-service and low-cost airlines flying between Dallas and St. Louis in a single search, including nonstop and one-stop options, so you can weigh price against total travel time.

Best Time to Book Flights from Dallas to St. Louis

Fares on this route tend to be lowest in September, February, and January. For the best selection, book about 1 to 3 months before departure and stay flexible by a day or two.

Average Travel Duration

Dallas and St. Louis are about 550 miles apart. A nonstop flight takes roughly 1h 35m; connecting itineraries usually add 2 to 5 hours.

Dallas to St. Louis flight questions

How can I find the absolute cheapest flight from Dallas to St. Louis?

The best way to secure budget rates is by comparing multiple airlines simultaneously and checking flexible dates. Ducoffs.com scans available partner networks to bring you real-time pricing options.

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

Based on typical seasonal demand, September, February, and January tend to offer the lowest fares on this route, with estimated round-trip prices starting around $125. Live prices change daily, so run a search for your exact dates.

How long is the flight from Dallas to St. Louis?

Dallas and St. Louis are about 550 miles apart. A nonstop flight takes roughly 1h 35m, while connecting itineraries usually add 2 to 5 hours depending on the layover.

Which airlines fly nonstop from Dallas to St. Louis?

The cheapest fares we've tracked recently on this route include at least one stop. Your live search shows any nonstop options available for your dates.

When are hotels cheapest in St. Louis?

Hotel rates in St. Louis are usually lowest in November–March, when demand is quieter, and highest during peak season (June–August). Booking your flight and hotel together can save up to 30%.

Which airport do I fly into for St. Louis?

This route arrives at St. Louis Lambert International Airport (STL). Your search results also show nearby airports when they offer a cheaper or faster option.

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

For this route, booking about 1 to 3 months before departure usually gives the best balance of price and seat selection. Mid-week departures are often cheaper than weekend flights.

Is it cheaper to bundle flights and hotels together?

Yes. Bundling your travel components can save you up to 30% compared to booking flights and hotels separately, as airlines and properties offer exclusive package discounts.