F9 routes from AUS under $100

FareGlide found 2 cached destination rows where F9 appeared from AUS and the route low fit under $100. The lowest cached carrier-origin-budget row is AUS to DEN from $52 on Jul 31, 2026.

Departure airport
Austin (AUS)
Airline
Frontier Airlines (F9)
Budget ceiling
$100
Destination rows
2
Cached low
$52
Cached samples
3

Destination rows under this carrier ceiling

Use these rows as a carrier-origin shortlist. Open the route page first, then apply airline, baggage, seat, and stop filters inside current partner results.

Origin-airline-budget recheck plan

This plan keeps origin, carrier, and budget fixed first, then decides whether destination, stop filter, or current dates should move.

Origin-airline-budget lock

AUS F9 under $100

Keep AUS, F9, and the $100 ceiling fixed before comparing destination rows.

Lowest under-ceiling route

AUS to DEN from $52

Start with Jul 31, 2026, then compare nearby weekdays and the provider airline filter.

Budget route spread

2 destination leads

2 cached route rows had a carrier-origin low under $100. Use them as a route shortlist, not live inventory.

Stop filter

3 nonstop samples in selected rows

Compare airline and nonstop filters together because a low carrier fare can disappear faster on direct itineraries.

Carrier-budget decision brief

Budget-carrier move

AUS plus F9

Use the $100 ceiling to narrow the carrier-origin group before picking the first destination row.

Carrier budget evidence

2 routes / 3 cached samples

This is narrower than the full origin-airline page, which has 6 cached route rows.

Main origin-airline-budget risk

Nonstop carrier fare can move

Cached nonstop rows are useful, but current airline inventory and fare rules need a live provider check.

Best carrier follow-up

6 routes / $52 to $539 / 3 nonstop samples / 4 connecting samples

Compare the broader AUS F9 page before treating the under-$100 slice as the whole opportunity.

Connected carrier-origin research

All F9 cached routes from AUS 6 routes / $52 to $539 / 3 nonstop samples / 4 connecting samples All airline rows from AUS 6 airlines / 16 cached route rows All routes under $100 Budget-wide route watchlist Frontier Airlines airline hub Carrier-level cached route context

Other F9 from AUS budget cuts

Under $150 $150 ceiling / 4 destinations / from $52 / Nonstop Under $300 $300 ceiling / 5 destinations / from $52 / Nonstop

Frontier Airlines from AUS under $100 questions

Are F9 flights from AUS under $100 live on this page?

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

Which F9 route from AUS looked cheapest under $100?

AUS to DEN had the lowest cached carrier-origin signal at $52 on Jul 31, 2026.

How should I use this origin-airline-budget page?

Start with the lowest destination row, then compare nearby weekdays, stop count, airline availability, and total checkout cost before treating the $100 ceiling as achievable.