F9 to BOS in June 2026
FareGlide grouped 3 cached F9 fare observations to BOS in June 2026 across 2 origins. The lowest cached origin is Kansas City (MCI) from $167 on Jun 23, 2026. This is carrier-destination-month research context, not live inventory.
- Destination
- Boston (BOS)
- Airline
- Frontier Airlines (F9)
- Month
- June 2026
- Cached low
- $167
- Origins
- 2
- Stop mix
- 3 connecting
June 2026 F9 origins to BOS
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
BOS + F9 in June 2026
Keep BOS, F9, and June 2026 fixed first, then compare origin rows before changing filters.
Lowest cached origin
Kansas City from $167
Start with Jun 23, 2026 on MCI to BOS, then compare nearby weekdays.
Evidence depth
3 samples / 2 routes
2 origins have cached F9 context to BOS in June 2026. Treat it as a recheck queue.
Stop filter
3 connecting samples
If live airline-filtered results are thin, widen to all carriers before changing the month.
Carrier-destination-month decision brief
Use this brief when Frontier Airlines, BOS, and June 2026 are all part of the search hypothesis.
Carrier-destination-month move
F9 to BOS after the June 2026 check
Start with the full BOS 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 BOS page, which has 3 cached samples across all sampled dates.
Main carrier-destination risk
Carrier filter can thin results
If the live airline filter returns weak results, widen to all carriers before changing the origin.
Best destination follow-up
Frontier Airlines to BOS
Compare against the broader carrier-destination page from $167 before treating this month as the best airline window.
Connected carrier-destination research
F9 to BOS in June 2026 questions
Are F9 fares to BOS 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 BOS looked cheapest in June 2026?
MCI to BOS had the lowest cached sample at $167 on Jun 23, 2026.
How many cached samples support this F9 destination-month page?
FareGlide grouped 3 cached fare samples across 2 route rows for June 2026.