$29 Cheap flight deals from Seattle (SEA) to Longmont (DEN)
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This Weekend's Flight Deals from Seattle to Longmont
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $29 One Way, $56 Round Trip from Seattle to Longmont
Prices starting at $56 for return flights and $29 for one-way flights to Longmont were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Longmont economy flight packages
Element Denver Downtown East
Apr 25 - Apr 28
Seattle (SEA) to Denver (DEN)
Reviewed on May 9, 2025
The Crawford Hotel
Apr 25 - Apr 28
Seattle (SEA) to Denver (DEN)
Reviewed on Jun 29, 2025
The Maven Hotel at Dairy Block
Apr 25 - Apr 28
Seattle (SEA) to Denver (DEN)
Reviewed on Nov 29, 2025
Longmont packages with premium economy flights
Summit Villa BnB
May 13 - May 17
Seattle (SEA) to Denver (DEN)
Reviewed on Jun 24, 2023
Spark by Hilton Denver International Airport
May 13 - May 17
Seattle (SEA) to Denver (DEN)
Reviewed on Jan 1, 2026
Holiday Inn Express Hotel & Suites Denver East-Peoria Street by IHG
May 13 - May 17
Seattle (SEA) to Denver (DEN)
Reviewed on Dec 2, 2023
More About Flying To Longmont from Seattle
Route Information for Flights from Seattle to Longmont
Origin Airport IATA Code | SEA |
|---|---|
Destination Airport IATA Code | DEN |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Seattle to Longmont
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Mobile Apps for Seattle to Longmont Flights
You can use our mobile app to find the cheapest prices for flights from Seattle to Longmont. With this cutting-edge technology, you can check up on your flight’s status, gate number and luggage claim handling, and reserve exclusive deals on top hotels at short notice.
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Budget Flying Made Simple
Finding cheap flights from Seattle to Longmont is easy with Orbitz. You can pick and choose airlines for your international flights to create inexpensive yet convenient travel arrangements.
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.