Frontier’s reservations line is 602-333-5925, staffed 24/7 by the same team that handles everything else customer-facing. Not a toll-free 800 number, which surprises people — long calls from a mobile plan eat minutes. Cheaper paths exist: flyfrontier.com, the Frontier app, and the live chat on the site. Where you can’t avoid a human, Frontier’s fee structure includes a $25 External Reservation Handling Charge for tickets booked through non-Frontier channels, so check any quote carefully.
In This Article
The contact options
Main reservations and customer service: 602-333-5925, 24 hours a day, 7 days a week. Same number for new bookings, changes, cancellations, refunds, baggage claims, everything. Frontier has consolidated into one line — there’s no separate reservations vs customer-service queue.
Your other channels:
- Live chat: flyfrontier.com/chat-with-us — available 24/7, usually faster than phone
- Text chat through the website: start from the Contact page
- App: Frontier Miles app handles check-in, changes, cancellations, adding bags
- Social media DMs: X/Twitter @FlyFrontier gets answered faster than phone for simple issues
Hold times on 602-333-5925 are long. Expect 30 to 90 minutes on weekdays and worse on weekends. If you have any flexibility, start with chat. The same agents cover both channels, but chat moves faster because a single agent can handle multiple chat windows.
The fee landscape before you book
Like Spirit, Frontier runs on bare fares with paid extras. The advertised fare covers the seat and a small personal item only. Published fees to expect (from flyfrontier.com’s optional services page):
- Carry-on bag: $39-$99 depending on when you add it — cheapest during initial booking, most expensive at the gate
- First checked bag: $29-$75 with same escalator
- Seat selection: $5-$50 depending on row
- Name change on existing booking: $75 per passenger, non-refundable
- Codeshare facilitation fee: $15
- External reservation handling charge: $25 per passenger (if booked through a third-party OTA and needs Frontier intervention)
- Change fee: $0 on changes 60+ days out, $49 on 7-59 days, $99 within 7 days, plus fare difference
The one genuine win: all Frontier fares are refundable within 24 hours of booking if the flight is 7+ days out, as long as you booked direct on flyfrontier.com. Miss that window and it’s credits only on most fares.
When calling makes sense
For 90% of what people call about, flyfrontier.com or the app is faster and cheaper. Reserve phone or chat for:
Involuntary schedule changes or cancellations. If Frontier changes your flight by more than a few hours, you’re usually entitled to a refund or rebooking. The website pushes you to accept the auto-rebook — call or chat to request a refund if you prefer cash over credit.
Group bookings of 10 or more. Same main line, ask for the group desk. Group pricing isn’t published on the public site.
Special assistance — wheelchair, service animals, medical devices. The online self-service can flag the request, but call to confirm. Too many stories of flagged-but-not-delivered wheelchair service at the gate.
Using an existing Frontier credit or voucher. Applying travel credits online is hit or miss, especially when combining them with a cash portion. Agents can force the credit through.
One honest call-out: Frontier’s customer-service reputation is near the bottom of US airline rankings, and the answer to most complaint calls is “that’s within our contract of carriage, no further compensation.” Not the agent’s fault — it’s policy. Keep calls short, state one specific issue, and accept that travel credits are usually the ceiling.
What to have ready
Prep for the call:
- Confirmation code — six characters in any Frontier email.
- A screenshot of the flyfrontier.com fare you’re trying to match, in case the phone quote differs.
- Frontier Miles number if you have one. Elite tiers get faster routing.
- Credit card. Paid during the call; phone doesn’t honour the 24-hour refund window if you book by phone (only direct-website bookings get that protection).
- Clear, one-sentence statement of what you need. Scripted agents handle direct requests better than open-ended frustration.
If you booked through Expedia, Kayak, or another OTA, know that Frontier charges $25 per passenger just to handle changes on those bookings. For trips where changes are possible, book direct on flyfrontier.com.
The short version
- Main line: 602-333-5925 (24/7, not toll-free)
- Live chat: flyfrontier.com/chat-with-us
- App: Frontier Miles
- Phone booking fee: no dedicated surcharge, but $25 External Reservation Handling Charge applies to non-Frontier-sourced bookings
- 24-hour free cancel: only on direct flyfrontier.com bookings, flight 7+ days out
- Carry-on: $39+, checked bag: $29+, seat: $5+
- Name change: $75 per passenger
If you’re comparing Frontier to other US ULCCs, the fee sheet differs but the shape is the same — Allegiant is the other comparable choice, and if you need the IVR shortcut to reach a Frontier agent see our live-person guide. Numbers verified April 2026 against Frontier’s published contact and optional services pages.
