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Low Price Flights from Seattle to Dallas

Seattle to Dallas Flight Information

The approximate distance between Seattle and Dallas is 2,694.69km. Average flight time from Seattle to Dallas is around 4 hours 2 minutes. According to Trip.com data, travel demand hits its peak in July. The cheapest month to book flights is December.

Cheapest one-way
AU$ 106
Frontier Airlines Frontier Airlines SEA-DFW 23h 30m · 1 stop Wed, Sep 2
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Cheapest return
AU$ 251
Frontier Airlines Frontier Airlines SEA-DFW 15h 32m · 1 stop Wed, Aug 19 - Sat, Aug 22
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Recommended airlines
Frontier Airlines Frontier Airlines Cheapest · From AU$ 106 Alaska Airlines Alaska Airlines Most booked
Best time to book
January
Cheapest
July
Peak season for travel
Route details
2,694.69km
Flight distance
4h 2m
Average flight time

Explore the cheapest flights from Seattle to Dallas in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at AU$ 170, and direct return tickets start at AU$ 333.

      • Cheapest nonstop
        SEA 06:00
        3h 59m
        Direct
        DFW 11:59
        Seattle - Dallas | Thu, Aug 20 | Alaska Airlines
        DFW 17:59
        4h 22m
        Direct
        SEA 20:21
        Dallas - Seattle | Thu, Aug 27 | Alaska Airlines
        AU$ 333 AU$ 464
        28% off
        28% off
        AU$ 464 AU$ 333
      • SEA 06:00
        3h 59m
        Direct
        DFW 11:59
        Seattle - Dallas | Mon, Aug 31 | Alaska Airlines
        DFW 13:02
        4h 23m
        Direct
        SEA 15:25
        Dallas - Seattle | Sat, Sep 5 | Alaska Airlines
        AU$ 334 AU$ 464
        28% off
        28% off
        AU$ 464 AU$ 334
      • SEA 14:37
        15h 32m
        1 stop
        DFW 08:09
        Seattle - Dallas | Wed, Aug 19 | Frontier Airlines
        DFW 06:20
        4h 18m
        Direct
        SEA 08:38
        Dallas - Seattle | Sat, Aug 22 | Alaska Airlines
        AU$ 251 AU$ 464
        46% off
        46% off
        AU$ 464 AU$ 251
      • SEA 20:15
        7h 56m
        1 stop
        DFW 06:11
        Seattle - Dallas | Thu, Oct 1 | Frontier Airlines
        DFW 07:00
        10h 8m
        1 stop
        SEA 15:08
        Dallas - Seattle | Tue, Oct 6 | Frontier Airlines
        AU$ 263
        43% off
        AU$ 464 AU$ 263
      • SEA 20:15
        7h 56m
        1 stop
        DFW 06:11
        Seattle - Dallas | Tue, Sep 22 | Frontier Airlines
        DFW 07:00
        10h 8m
        1 stop
        SEA 15:08
        Dallas - Seattle | Tue, Sep 29 | Frontier Airlines
        AU$ 263
        43% off
        AU$ 464 AU$ 263
      • SEA 19:06
        11h 3m
        1 stop
        DFW 08:09
        Seattle - Dallas | Tue, Aug 25 | Frontier Airlines
        DFW 08:00
        4h 33m
        Direct
        SEA 10:33
        Dallas - Seattle | Tue, Sep 1 | Alaska Airlines
        AU$ 265
        43% off
        AU$ 464 AU$ 265
      • SEA 10:53
        12h 1m
        1 stop
        DFW 00:54
        Seattle - Dallas | Fri, Oct 2 | Frontier Airlines
        DFW 07:00
        10h 8m
        1 stop
        SEA 15:08
        Dallas - Seattle | Tue, Oct 6 | Frontier Airlines
        AU$ 272
        41% off
        AU$ 464 AU$ 272
      • SEA 07:00
        11h 35m
        1 stop
        DFW 20:35
        Seattle - Dallas | Sat, Sep 19 | Frontier Airlines
        DAL 07:55
        4h 10m
        Direct
        SEA 10:05
        Dallas - Seattle | Mon, Sep 21 |
        AU$ 282
        39% off
        AU$ 464 AU$ 282
      • SEA 21:16
        6h 2m
        1 stop
        DFW 05:18
        Seattle - Dallas | Thu, Oct 15 | Frontier Airlines
        DFW 07:00
        10h 12m
        1 stop
        SEA 15:12
        Dallas - Seattle | Mon, Oct 19 | Frontier Airlines
        AU$ 293
        37% off
        AU$ 464 AU$ 293
      • SEA 05:30
        3h 57m
        Direct
        DFW 11:27
        Seattle - Dallas | Tue, Sep 22 | American Airlines
        DFW 07:00
        10h 8m
        1 stop
        SEA 15:08
        Dallas - Seattle | Tue, Sep 29 | Frontier Airlines
        AU$ 316
        32% off
        AU$ 464 AU$ 316
      • SEA 13:00
        17h 25m
        1 stop
        DFW 14:00
        Seattle - Dallas | Wed, Aug 19 | Normal Airline
        DFW 15:00
        6h
        Direct
        SEA 16:00
        Dallas - Seattle | Fri, Aug 21 | Normal Airline
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      • Cheapest nonstop
        SEA 22:58
        4h 2m
        Direct
        DFW 05:00
        Seattle - Dallas | Mon, Sep 28 | Alaska Airlines
        AU$ 170 AU$ 241
        28% off
        28% off
        AU$ 241 AU$ 170
      • SEA 19:06
        23h 30m
        1 stop
        DFW 20:36
        Seattle - Dallas | Wed, Sep 2 | Frontier Airlines
        AU$ 106 AU$ 241
        56% off
        56% off
        AU$ 241 AU$ 106
      • SEA 19:06
        21h 12m
        1 stop
        DFW 18:18
        Seattle - Dallas | Mon, Aug 31 | Frontier Airlines
        AU$ 119 AU$ 241
        51% off
        51% off
        AU$ 241 AU$ 119
      • SEA 16:27
        24h 57m
        1 stop
        DFW 19:24
        Seattle - Dallas | Thu, Sep 10 | Frontier Airlines
        AU$ 140
        42% off
        AU$ 241 AU$ 140
      • SEA 19:06
        16h 13m
        1 stop
        DFW 13:19
        Seattle - Dallas | Sat, Sep 5 | Frontier Airlines
        AU$ 144
        40% off
        AU$ 241 AU$ 144
      • SEA 16:27
        24h 57m
        1 stop
        DFW 19:24
        Seattle - Dallas | Wed, Sep 9 | Frontier Airlines
        AU$ 155
        36% off
        AU$ 241 AU$ 155
      • SEA 07:00
        11h 35m
        1 stop
        DFW 20:35
        Seattle - Dallas | Tue, Sep 29 | Frontier Airlines
        AU$ 157
        35% off
        AU$ 241 AU$ 157
      • SEA 16:27
        24h 57m
        1 stop
        DFW 19:24
        Seattle - Dallas | Tue, Sep 15 | Frontier Airlines
        AU$ 163
        32% off
        AU$ 241 AU$ 163
      • SEA 16:27
        5h 53m
        1 stop
        DFW 00:20
        Seattle - Dallas | Thu, Sep 24 | Frontier Airlines
        AU$ 168
        30% off
        AU$ 241 AU$ 168
      • SEA 16:27
        5h 53m
        1 stop
        DFW 00:20
        Seattle - Dallas | Fri, Sep 25 | Frontier Airlines
        AU$ 173
        28% off
        AU$ 241 AU$ 173
      • SEA 13:00
        17h 25m
        1 stop
        DFW 14:00
        Seattle - Dallas | Wed, Aug 19 | Normal Airline
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Find Cheapest Airlines Flying from Seattle to Dallas

Choose from 1 carriers that fly from Seattle to Dallas, including Alaska Airlines, Enjoy the cheapest tickets on this route with Frontier Airlines.
Alaska Airlines logo Alaska Airlines
Airlines are determined based on actual purchased flight tickets from Seattle to Dallas according to previous 12 months data from Trip.com.

Trip.com Price Insights on Flights from Seattle to Dallas

What is the cheapest month for one-way flights from Seattle to Dallas?

Average price of one-way flights from Seattle to Dallas purchased by Trip.com users by month over the past 12 months.

According to Trip.com's data, the cheapest month for flights from Seattle to Dallas is January, with an average price of AU$ 244. Conversely, the most expensive month is typically June, with an average price of up to AU$ 406.

AU$ 406
AU$ 325
AU$ 244
AU$ 163
    Cheapest
  • AU$ 259
    Aug
  • AU$ 251
    Sep
  • AU$ 260
    Oct
  • AU$ 286
    Nov
  • AU$ 313
    Dec
  • AU$ 244
    Jan
  • AU$ 261
    Feb
  • AU$ 332
    Mar
  • AU$ 296
    Apr
  • AU$ 292
    May
  • AU$ 406
    Jun
  • AU$ 363
    Jul

What is the cheapest month for return flights from Seattle to Dallas?

Average price of round-trip flights from Seattle to Dallas purchased by Trip.com users by month over the past 12 months.

According to historical data from Trip.com, the lowest prices for flights from Seattle to Dallas are found during October, with an average price of AU$ 335. Conversely, the highest prices are found during June, with an average price of up to AU$ 853.

AU$ 853
AU$ 594
AU$ 335
AU$ 76
    Cheapest
  • AU$ 371
    Aug
  • AU$ 369
    Sep
  • AU$ 335
    Oct
  • AU$ 475
    Nov
  • AU$ 612
    Dec
  • AU$ 519
    Jan
  • AU$ 766
    Feb
  • AU$ 831
    Mar
  • AU$ 781
    Apr
  • AU$ 475
    May
  • AU$ 853
    Jun
  • AU$ 704
    Jul

What's the cheapest day to fly from Seattle to Dallas?

Data is based on the average flight price for each day of the week from Seattle to Dallas on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Seattle to Dallas is Tuesday, with average prices lower than on other days. Avoid Saturday, as prices are usually highest then.

AU$ 365
AU$ 313
AU$ 260
AU$ 208
  • AU$ 322
    Mon
  • AU$ 260
    Tue
  • AU$ 301
    Wed
  • AU$ 278
    Thu
  • AU$ 308
    Fri
  • AU$ 365
    Sat
  • AU$ 334
    Sun

Flight FAQs

  • Which airlines offer the cheapest flights from Seattle (SEA) to Dallas (DFW)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as AU$ 106 on Cheapest nonstop routes (e.g. SEA to DFW on Wed, Sep 2), while Frontier Airlines offers Cheapest nonstop round-trips from AU$ 251 departing on Wed, Aug 19 and returning on Sat, Aug 22.
  • At the moment, you can catch a direct flight from Seattle to Dallas with the following airlines, including: Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 4 hours 2 minutes to fly from Seattle (SEA) to Dallas (DFW).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Dallas is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 96 flight per week flying from Seattle to Dallas. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/-/W/T/F/S -- AS542 (23:29)
  • To find best deals on flights from Seattle to Dallas, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Sep 2, with one-way flights priced at just AU$ 106.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Dallas travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Dallas is December, when demand for travel is lower.
  • After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Seattle to Dallas on August 21, 2026 with Frontier Airlines, with prices starting at AU$ 142.
  • You can land at any one of the following hubs in Dallas, with Seattle-Tacoma International Airport to Dallas Fort Worth International Airport (SEA-DFW) is by far the most common option on this route: Dallas Love Field (DAL) Dallas Fort Worth International Airport (DFW).
  • The time difference between Dallas and Seattle is 2h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Seattle to Dallas is AU$ 307. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Seattle to Dallas is AU$ 544. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Seattle and Dallas, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Frontier Airlinesare the most popular budget airlines flying from Seattle to Dallas. Check baggage, seat and payment fees before comparing the final price.

Trip.com Airline Insights on Flights from Seattle toDallas

Which airlines offer the cheapest nonstop flights from Seattle to Dallas?

Data is based on the average price of all nonstop flights from Seattle to Dallas on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Delta Air Lines offers the cheapest nonstop flights from Seattle to Dallas, with an average price of AU$ 256.

AU$ 203
AU$ 256
AU$ 310
AU$ 363
AU$ 416
Delta Air Lines
AU$ 256
Delta Air Lines
Frontier Airlines
AU$ 259
Frontier Airlines
Hawaiian Airlines
AU$ 346
Hawaiian Airlines
Alaska Airlines
AU$ 361
Alaska Airlines
American Airlines
AU$ 416
American Airlines

Which airlines operate the most flights from Seattle to Dallas?

Data is based on the number of flights from Seattle to Dallas operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, American Airlines operates the most flights from Seattle to Dallas, with 62 flight per week.

23
36
49
62
American Airlines
62
American Airlines
Qatar Airways
59
Qatar Airways
Alaska Airlines
44
Alaska Airlines
Iberia
44
Iberia
British Airways
38
British Airways
Gulf Air
36
Gulf Air

How many flights are there each day from Seattle to Dallas?

The data is based on the flight numbers for each day of the week from Seattle to Dallas within the Trip.com database over the past month.

Based on Trip.com data from the past month, the most flights from Seattle to Dallas depart on Friday/Saturday, and the fewest flights depart on Wednesday.

271
241
211
181
Highest
212
Mon
225
Tue
211
Wed
212
Thu
271
Fri
271
Sat
222
Sun

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.