Title: £210 Cheap Delta flights from Denver to Seattle (DEN→SEA) - Expedia.co.uk

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# £210 Cheap Delta flights from Denver to Seattle (DEN→SEA)

[View £210 flight on Sun, 5 Apr 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:DEN,to:SEA,departure:05/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:209.40&airProductToken=AQo3CjUIxJgBEgQzNjc1GINpIJIBKJ7HiQMw3ciJAzhFQABYAWoJTUFJTkJBU0lDcghUQTBOQTBCURIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) 

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## Delta flights from Denver to Seattle (DEN→SEA)

Prices were available within the past 7 days and start at £210 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All deals

One way

Return

## Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

[](https://www.expedia.co.uk/Flights-Search?leg1=from:DEN,to:SEA,departure:18/04/2026TANYT&leg2=from:SEA,to:DEN,departure:19/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

SEA

Seattle - Tacoma Intl.

Cheapest

20 min

[Flights from £255

](https://www.expedia.co.uk/Flights-Search?leg1=from:DEN,to:SEA,departure:18/04/2026TANYT&leg2=from:SEA,to:DEN,departure:19/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

## Find the cheapest month to fly from Denver (DEN) to Seattle (SEA)

### April is typically the cheapest month to fly

From £42 - £119 per traveller.

## Frequently asked questions

### How much is a Delta Air Lines flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?

### What is the cheapest month to fly from DEN to SEA with Delta Air Lines?

### Does Delta Air Lines fly nonstop from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?

### How long does it take to fly from DEN to SEA with Delta Air Lines?

### Which day of the week has the most Delta Air Lines flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?

### What airports does Delta Air Lines fly into in Seattle?

### What type of plane does Delta Air Lines fly from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?

### Can I change or cancel my Delta Air Lines flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?

## Travel information

| Origin airport      | Denver Intl.                     |
| ------------------- | -------------------------------- |
| Destination airport | Seattle - Tacoma Intl.           |
| Airlines serving    | Alaska Airlines, JetBlue Airways |
| Popular airline     | Alaska Airlines                  |
| Distance            | 1635 km                          |
| Average flight time | 1 hour 57 mins                   |

\*Available to Expedia members.