Domestic route
Cheap flights from Seattle to Dallas
Seattle-Tacoma International Airport (SEA) to Dallas/Fort Worth International Airport (DFW). 1,658 miles, 3h 40m nonstop.
SEA to DFW at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 1,658 milesgreat-circle
- Typical flight time
- 3h 40mnonstop, gate to gate
- Nonstop airlines
- AADLASNK5 airlinesAmerican, Delta, Alaska
- Nonstop flights per day
- 25all airlines combined
- Cheapest month
- February 2027over the next six months
- Best day to fly
- Wednesday17% less than Sunday
- Time difference
- 2h aheadDallas vs Seattle
Seattle to Dallas
Round trips from $113
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Feb 2.
Cheapest month: February 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppSeattle to Dallas fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Seattle to Dallas
5 airlines fly nonstop with 25 departures a day combined, plus 4 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 7 flights a day · first checked bag from $35
- DLDelta Air LinesSkyTeamNonstop · 7 flights a day · first checked bag from $35
- AAAmerican AirlinesoneworldNonstop · 5 flights a day · first checked bag from $40
- NKSpirit AirlinesLow-costNonstop · 4 flights a day · first checked bag from $55
- SYSun Country AirlinesLow-costNonstop · 2 flights a day · first checked bag from $45
- F9Frontier AirlinesLow-costConnecting via DEN, LAS, PHX · first checked bag from $55
- B6JetBlueConnecting via LAX · first checked bag from $40
- WNSouthwest AirlinesLow-costConnecting via HOU, MDW, DEN, LAS, PHX, OAK, BNA, LAX, SAN, STL, AUS · first checked bag from $35
- UAUnited AirlinesStar AllianceConnecting via ORD, DEN, IAH, SFO, LAX · first checked bag from $40
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Denver (DEN)UAWNF93 airlines
- Los Angeles (LAX)UAWNB63 airlines
- Las Vegas (LAS)WNF92 airlines
- Phoenix (PHX)WNF92 airlines
- Chicago (ORD)UA1 airline
Which airport should I use?
SeattleDallas has 2 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Other arrival airports near Dallas
Tips for this route
- American, Delta, Alaska and Spirit all fly SEA to DFW nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- February 2027 is the cheapest month to fly over the next six months, with round trips from $113; September 2026 is the most expensive at $158 and up, a difference of $45 per traveler.
- Departing on a Wednesday averages 17% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
- Dallas is 2 hours ahead of Seattle. Expect to lose 2 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Ready to compare live fares?
See every airline on SEA–DFW side by side with bags and seat rules spelled out.
Search Seattle to DallasSeattle to Dallas: common questions
How long is the flight from Seattle to Dallas?
A nonstop flight from Seattle (SEA) to Dallas (DFW) takes about 3h 40m gate to gate, covering 1,658 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from SEA to DFW?
American Airlines, Delta Air Lines, Alaska Airlines, Spirit Airlines and Sun Country Airlines operate nonstop flights from Seattle (SEA) to Dallas (DFW), with 25 nonstop departures a day between them. One-stop options connect through DEN, LAX and LAS.
What is the cheapest month to fly from Seattle to Dallas?
Over the next six months, February 2027 has the lowest round-trip fares from Seattle (SEA) to Dallas (DFW), starting at $113 per traveler including taxes and fees. Within any month, Wednesday departures average the lowest prices.
How far in advance should I book Seattle to Dallas flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Seattle and Dallas?
Dallas is 2 hours ahead of Seattle. SEA is on America/Los Angeles time and DFW on America/Chicago time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
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