Cheap flights from Monarch

View AU$805 flight on Thu, 24 Sept 2026Opens in a new window

Popular airlines from Monarch

  • Alaska Airlines

  • United

  • Delta

  • KLM

  • Allegiant Air

  • Korean Air

  • Air France

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • 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, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,531 Return, found 6 days ago
AU$1,531
Return
found 6 days ago
Select United flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,531 found 6 days ago
United
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,532 Return, found 6 days ago
AU$1,532
Return
found 6 days ago
Select United flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,532 found 6 days ago
United
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,560 Return, found 6 days ago
AU$1,560
Return
found 6 days ago
Select United flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,560 found 6 days ago
United
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,561 Return, found 6 days ago
AU$1,561
Return
found 6 days ago
Select United flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,561 found 6 days ago
United
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,669 Return, found 6 days ago
AU$1,669
Return
found 6 days ago
Select United flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,669 found 6 days ago
United
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,683 Return, found 6 days ago
AU$1,683
Return
found 6 days ago
Select United flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,683 found 6 days ago
United
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,687 Return, found 6 days ago
AU$1,687
Return
found 6 days ago
Select United flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,687 found 6 days ago
Delta
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,776 Return, found 6 days ago
AU$1,776
Return
found 6 days ago
Select Delta flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,776 found 6 days ago
Alaska Airlines
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,794 Return, found 6 days ago
AU$1,794
Return
found 6 days ago
Select Alaska Airlines flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,794 found 6 days ago
KLM
Thu, 24 Sept - Thu, 1 Oct
GTF
Great Falls
FCO
Rome
AU$1,855 Return, found 6 days ago
AU$1,855
Return
found 6 days ago
Select KLM flight, departing Thu, 24 Sept from Great Falls to Rome, returning Thu, 1 Oct, priced at AU$1,855 found 6 days ago

Travel information

Flights from Monarch: Essential Travel Information

Cheapest flight from Monarch
AU$1,531 (roundtrip)
Best airlines to fly from Monarch
United, Alaska Airlines, Delta, KLM
Cheapest month to fly from Monarch
September
Monarch IATA code
GTF
Monarch Country/State
Montana
Airline ticket deals from Monarch
AU$1,531 - AU$1,855
*Available to Expedia members.