$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, $58 Round Trip from Seattle to Longmont
Prices starting at $58 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
Patterson Inn
Jan 16 - Jan 18
Seattle (SEA) to Denver (DEN)
Reviewed on Sep 28, 2025
The Brown Palace Hotel and Spa, Autograph Collection
Jan 23 - Jan 27
Seattle (SEA) to Denver (DEN)
Denver (DEN) to Seattle (SEA)
Reviewed on Nov 11, 2025
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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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.