The cheapest times to fly from SEA to DED are

  • January 8th to May 27th (except the weeks of April 2nd and May 14th)
  • August 27th to October 21st

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SEA to DED is late April. Prices can be as high as $4455 for Saturday flights during late November to early December, or as low as $1693 for Friday flights around late April.


When to Fly to Dehradun

Flying from Seattle, WA (SEA) to Dehra Dun (DED) will usually cost between $1732 to $2878 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late April with an average ticket price of $1723. Due to high demand the most expensive time to fly is late November to early December, with an average price of $3087. Planning your trip to low-cost times can easily save you $1364 on economy flights and even more on first-class flights. Generally, any price below $1917 can be considered a good price for a round-trip SEA to DED flight.

See below for a graph of average weekly prices for the SEA to DED route. All prices are for round-trip tickets in USD.

SEA to DED Flight Prices

Compared to other flights, the SEA to DED flight is more expensive than the average and costs more than the average flight leaving from Seattle. The average price per mile (for a direct flight) is $0.17, which is below average.


Flight Prices by Day of the Week

Friday is usually the cheapest day to fly to DED, and Tuesday the cheapest day to fly back into SEA. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $225 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Friday and returning a week later will cost an average of $1992. Return trip prices are from the DED to SEA flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SEA to DED can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 13 hour 26 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SEA to DED while comparing.

Destination alternative #1: Indira Gandhi International Airport (DEL) in Delhi

  • 130 miles (209 km) away from DED
  • Usually 47.42% less expensive than DED
  • 1-layover flights available

See SEA to DEL flights

Destination alternative #2: Chandigarh Airport (IXC) in Chandigarh

  • 89 miles (143 km) away from DED
  • Usually 21.05% less expensive than DED
  • 2-layover flights available

See SEA to IXC flights


Flight Hacking SEA to DED

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SEA to DED — but Champion Traveler does!

Hack #1: Delhi (SEA > DEL > DED)

  • Price for both tickets: $1076
  • Average savings: $842 (43.9%)

See SEA to DEL flights

Hack #2: Bangalore (SEA > BLR > DED)

  • Price for both tickets: $1188
  • Average savings: $729 (38.03%)

See SEA to BLR flights

Hack #3: Hyderabad (SEA > HYD > DED)

  • Price for both tickets: $1234
  • Average savings: $683 (35.63%)

See SEA to HYD flights


Flight Questions Answered

Still have questions about flying from SEA to DED? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Air Canada, Air India, American, Delta, United, and potentially more during busy seasons.

How far away is it from Dehradun Airport to Seattle/Tacoma International Airport?

The distance between the two airports is roughly 6922 miles or 11140 kilometers.

How long does it take to fly from SEA to DED?

The real-world flight time for a nonstop SEA to DED flight is about 13 hour 26 minutes.

How many flights go between Seattle, WA and Dehra Dun?

It depends on the day of the week and the date, but a typical day might have around 9 available flights from SEA to DED.


Airport Location Info


Departing Airport

Origination codeSEA
Origination airport nameSeattle/Tacoma International Airport
CitySeattle, WA
Countrythe United States

Return Airport

Destination codeDED
Destination airport nameDehradun Airport
CityDehra Dun


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.