Cheap flights from Monarch starting at RM369

View RM369 flight on Fri, 9 Jan 2026Opens in a new window

Popular airlines from Monarch

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Frontier Airlines

    Frontier Airlines

  • Southwest Airlines

    Southwest Airlines

  • JetBlue Airways

    JetBlue Airways

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Monarch

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.

United
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM778 Return, found 2 days ago
RM778
Return
found 2 days ago
Select United flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM778 found 2 days ago
Delta
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM799 Return, found 2 days ago
RM799
Return
found 2 days ago
Select Delta flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM799 found 2 days ago
United
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM800 Return, found 2 days ago
RM800
Return
found 2 days ago
Select United flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM800 found 2 days ago
Delta
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM818 Return, found 2 days ago
RM818
Return
found 2 days ago
Select Delta flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM818 found 2 days ago
Delta
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM821 Return, found 2 days ago
RM821
Return
found 2 days ago
Select Delta flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM821 found 2 days ago
American Airlines
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM864 Return, found 2 days ago
RM864
Return
found 2 days ago
Select American Airlines flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM864 found 2 days ago
Delta
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM877 Return, found 2 days ago
RM877
Return
found 2 days ago
Select Delta flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM877 found 2 days ago
Delta
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM885 Return, found 2 days ago
RM885
Return
found 2 days ago
Select Delta flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM885 found 2 days ago
American Airlines
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM886 Return, found 2 days ago
RM886
Return
found 2 days ago
Select American Airlines flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM886 found 2 days ago
United
Thu, 11 Dec - Tue, 16 Dec
DEN
Denver
SAN
San Diego
RM901 Return, found 2 days ago
RM901
Return
found 2 days ago
Select United flight, departing Thu, 11 Dec from Denver to San Diego, returning Tue, 16 Dec, priced at RM901 found 2 days ago

Flights from Monarch: Essential Travel Information

Cheapest flight from Monarch
RM778 (roundtrip)
Best airlines to fly from Monarch
Delta, United, American Airlines
Cheapest month to fly from Monarch
December
Monarch IATA code
DEN
Monarch Country/State
Colorado
Airline ticket deals from Monarch
RM778 - RM901

 

*Available to Expedia members.