SEA → DFW

Find and Compare the Cheapest Ways to Fly from Seattle to Dallas

Compare one-way, round-trip and flight + hotel packages from Seattle to Dallas, a nonstop flight of about 3h 50m, with fares from around 215.

Seattle to Dallas flight facts

Seattle to Dallas is a domestic route covering about 1,657 miles, arriving at Dallas/Fort Worth International Airport (DFW) in United States. Peak travel season in Dallas runs March–May & October–November (warm and sunny), while June–August 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 Seattle to Dallas
Departing fromSeattle-Tacoma International Airport (SEA)
Arriving atDallas/Fort Worth International Airport (DFW)
Distance1,657 miles (2,668 km)
Nonstop flight timeAbout 3h 50m
Nonstop airlines seenNone in recent fares, expect 1 stop
Round-trip fares from$215 (estimate)
Cheapest monthsFebruary, October, January
Peak season in DallasMarch–May & October–November
Cheapest hotel months in DallasJune–August
Best time to book1 to 3 months ahead
Route info updatedOctober 16, 2026

When to visit Dallas

  • Peak season

    March–May & October–November

    Warm and sunny

  • Shoulder season

    February & September

    Mild, heat easing

  • Off-peak season

    June–August

    Hot and humid

Estimated round-trip fares by month, Seattle to Dallas

Estimated lowest round-trip fare per month
MonthFares from
January$260
February$215
March$295
April$280
May$260
June$315
July$330
August$295
September$265
October$240
November$310
December$320

Flying from Seattle to Dallas

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 Seattle and Dallas 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 Seattle to Dallas

Fares on this route tend to be lowest in February, October, 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

Seattle and Dallas are about 1,657 miles apart. A nonstop flight takes roughly 3h 50m; connecting itineraries usually add 2 to 5 hours.

Seattle to Dallas flight questions

How can I find the absolute cheapest flight from Seattle to Dallas?

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 Seattle to Dallas?

Based on typical seasonal demand, February, October, and January tend to offer the lowest fares on this route, with estimated round-trip prices starting around $215. Live prices change daily, so run a search for your exact dates.

How long is the flight from Seattle to Dallas?

Seattle and Dallas are about 1,657 miles apart. A nonstop flight takes roughly 3h 50m, while connecting itineraries usually add 2 to 5 hours depending on the layover.

Which airlines fly nonstop from Seattle to Dallas?

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 Dallas?

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

Which airport do I fly into for Dallas?

This route arrives at Dallas/Fort Worth International Airport (DFW). 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 Dallas?

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.