F9 to DEN in June 2026

FareGlide grouped 3 cached F9 fare observations to DEN in June 2026 across 2 origins. The lowest cached origin is Kansas City (MCI) from $156 on Jun 7, 2026. This is carrier-destination-month research context, not live inventory.

Destination
Denver (DEN)
Airline
Frontier Airlines (F9)
Month
June 2026
Cached low
$156
Origins
2
Stop mix
1 nonstop

June 2026 F9 origins to DEN

Use these rows to choose a departure airport before opening current partner results. If the live airline filter is weak, widen to all carriers before changing the travel month.

Destination-airline-month recheck plan

This plan keeps destination, airline, and month fixed first, then decides whether the origin, stop filter, or live provider dates should move.

Destination-airline-month lock

DEN + F9 in June 2026

Keep DEN, F9, and June 2026 fixed first, then compare origin rows before changing filters.

Lowest cached origin

Kansas City from $156

Start with Jun 7, 2026 on MCI to DEN, then compare nearby weekdays.

Evidence depth

3 samples / 2 routes

2 origins have cached F9 context to DEN in June 2026. Treat it as a recheck queue.

Stop filter

1 nonstop sample

Compare airline and nonstop filters together because the fastest itinerary can separate from the cheapest one.

Carrier-destination-month decision brief

Use this brief when Frontier Airlines, DEN, and June 2026 are all part of the search hypothesis.

Carrier-destination-month move

F9 to DEN after the June 2026 check

Start with the full DEN June 2026 origin shortlist, then apply Frontier Airlines if current inventory is broad enough.

Carrier-destination evidence

3 cached samples

This is narrower than the full F9 to DEN page, which has 11 cached samples across all sampled dates.

Main carrier-destination risk

Nonstop can price-shift

A cached nonstop airline row is useful, but current date-level availability can move quickly.

Best destination follow-up

Frontier Airlines to DEN

Compare against the broader carrier-destination page from $48 before treating this month as the best airline window.

Connected carrier-destination research

All F9 origins to DEN 6 cached origins / $48 low All airlines to DEN 4 cached airline codes Cheap flights to DEN Destination-first origin ideas and fare context Frontier Airlines airline hub Carrier-level cached fare context

Other F9 months to DEN

July 2026 July 2026 / 3 origins / $48 to $112 / 4 nonstop / lead 4 nonstop August 2026 August 2026 / 1 origins / $114 to $134 / 3 connecting / lead 1 stop

F9 to DEN in June 2026 questions

Are F9 fares to DEN in June 2026 live on this page?

No. FareGlide uses cached fare observations to build the origin shortlist. Confirm current schedules, inventory, baggage, seat, and booking rules with the partner provider.

Which F9 origin to DEN looked cheapest in June 2026?

MCI to DEN had the lowest cached sample at $156 on Jun 7, 2026.

How many cached samples support this F9 destination-month page?

FareGlide grouped 3 cached fare samples across 2 route rows for June 2026.