Cheap flights from Longmont

View AU$56 flight on Tue, 7 Apr 2026Opens in a new window

Popular airlines from Longmont

  • American Airlines

  • United

  • Alaska Airlines

  • Delta

  • Frontier Airlines

  • Southwest Airlines

  • Air Canada

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Cheapest flights from Longmont

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 2 Apr - Mon, 6 Apr
DEN
Denver
SAN
San Diego
AU$166 Return, found 2 days ago
AU$166
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 2 Apr from Denver to San Diego, returning Mon, 6 Apr, priced at AU$166 found 2 days ago
Alaska Airlines
Wed, 15 Apr - Wed, 22 Apr
DEN
Denver
LAS
Las Vegas
AU$193 Return, found 21 hours ago
AU$193
Return
found 21 hours ago
Select Alaska Airlines flight, departing Wed, 15 Apr from Denver to Las Vegas, returning Wed, 22 Apr, priced at AU$193 found 21 hours ago
American Airlines
Sat, 11 Apr - Sat, 18 Apr
DEN
Denver
LAX
Los Angeles
AU$203 Return, found 3 days ago
AU$203
Return
found 3 days ago
Select American Airlines flight, departing Sat, 11 Apr from Denver to Los Angeles, returning Sat, 18 Apr, priced at AU$203 found 3 days ago
Delta
Sat, 11 Apr - Sat, 18 Apr
DEN
Denver
LAX
Los Angeles
AU$203 Return, found 3 days ago
AU$203
Return
found 3 days ago
Select Delta flight, departing Sat, 11 Apr from Denver to Los Angeles, returning Sat, 18 Apr, priced at AU$203 found 3 days ago
Alaska Airlines
Fri, 8 May - Sun, 10 May
DEN
Denver
SAN
San Diego
AU$207 Return, found 2 days ago
AU$207
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 8 May from Denver to San Diego, returning Sun, 10 May, priced at AU$207 found 2 days ago
Alaska Airlines
Fri, 8 May - Sun, 10 May
DEN
Denver
SAN
San Diego
AU$216 Return, found 2 days ago
AU$216
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 8 May from Denver to San Diego, returning Sun, 10 May, priced at AU$216 found 2 days ago
Delta
Fri, 24 Apr - Fri, 1 May
DEN
Denver
LAX
Los Angeles
AU$221 Return, found 4 days ago
AU$221
Return
found 4 days ago
Select Delta flight, departing Fri, 24 Apr from Denver to Los Angeles, returning Fri, 1 May, priced at AU$221 found 4 days ago
American Airlines
Tue, 14 Apr - Tue, 21 Apr
DEN
Denver
LAX
Los Angeles
AU$221 Return, found 1 day ago
AU$221
Return
found 1 day ago
Select American Airlines flight, departing Tue, 14 Apr from Denver to Los Angeles, returning Tue, 21 Apr, priced at AU$221 found 1 day ago
United
Sat, 11 Apr - Sat, 18 Apr
DEN
Denver
LAS
Las Vegas
AU$280 Return, found 4 days ago
AU$280
Return
found 4 days ago
Select United flight, departing Sat, 11 Apr from Denver to Las Vegas, returning Sat, 18 Apr, priced at AU$280 found 4 days ago
KLM
Sat, 14 Mar - Sun, 22 Mar
DEN
Denver
FCO
Rome
AU$3,002 Return, found 1 day ago
AU$3,002
Return
found 1 day ago
Select KLM flight, departing Sat, 14 Mar from Denver to Rome, returning Sun, 22 Mar, priced at AU$3,002 found 1 day ago

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Travel information

Flights from Longmont: Essential Travel Information

Cheapest flight from Longmont
AU$166 (roundtrip)
Best airlines to fly from Longmont
Frontier Airlines, Alaska Airlines, American Airlines, Delta, United, KLM
Cheapest month to fly from Longmont
April
Longmont IATA code
DEN
Longmont Country/State
Colorado
Airline ticket deals from Longmont
AU$166 - AU$3,002

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