Frontier Airlines Reviews & Complaints

Frontier Airlines reviews and complaints often focus on flight delays and cancellations, baggage and seat fees, refund or travel-credit disputes, check-in and boarding problems, FRONTIER Miles, Discount Den, and customer service. This page summarizes common complaint themes, current support channels, and practical steps for escalating a Frontier problem.

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• Company: Frontier Airlines, Inc.
• Industry: Airlines
• Website: FlyFrontier.com
• Customer service: 602-333-5925, 24/7
• Other support: live chat and WhatsApp
• Headquarters: 4545 Airport Way, Denver, CO 80239
• Common complaint topics: delays, cancellations, baggage fees, refund disputes, travel credits, check-in, boarding and support

Frontier Airlines is a U.S. ultra-low-cost carrier based in Denver, Colorado. Its model separates the base fare from many optional services such as carry-on bags, checked bags, seat assignments and certain bundles. Because the final trip cost can depend on selected extras, customers comparing fares should review the complete checkout total and baggage rules before purchase.

Recent public complaint and review sources show recurring themes involving delays and cancellations, baggage charges, denied or missed boarding, refund or credit disputes, difficulty resolving problems through support channels, and confusion over optional fees. These reports reflect individual experiences and are not a representative survey of all Frontier passengers.

Frontier’s current customer-service page says passengers whose flights are canceled or delayed more than three hours on a domestic itinerary or six hours on an international itinerary can use Frontier’s rebooking/refund options. For missed connecting flights at the connecting airport, Frontier also publishes a separate rebooking route.

For assistance, Frontier currently lists 602-333-5925, live chat and WhatsApp, with agents available 24/7. Save the confirmation code, flight number, delay or cancellation notices, and any rebooking or refund confirmation.

Baggage is a frequent source of complaints because Frontier charges separately for many bag types and enforces size and timing rules. Frontier’s current FAQ says personal items must be no larger than 14 x 18 x 8 inches, including handles, wheels and straps. Current rules also say check-in and checked-bag acceptance close one hour before scheduled departure.

For delayed, lost or damaged bags, Frontier provides a dedicated baggage assistance path from its Customer Service page. Report a baggage problem as quickly as possible and keep the bag tag, claim number, photos and receipts for essential replacement items.

Frontier provides a dedicated refund request route and separate rebooking/refund options for qualifying significant delays and cancellations. Refund eligibility depends on why the trip changed, the fare or bundle purchased, timing, and whether Frontier or the passenger initiated the cancellation.

For a refund or credit dispute, keep screenshots of the fare terms, the cancellation screen, the credit amount and expiration date, emails from Frontier, and any support transcript. If the booking was made through a third party, confirm whether Frontier or the seller controls the refund.

Frontier Miles and Discount Den can generate account, renewal, missing-mile and benefit questions. Use the Frontier account and Help Center first, then escalate through 24/7 phone, chat or WhatsApp support if the account cannot be corrected online. Save the membership number, transaction date and any promotional terms tied to the disputed benefit.

As checked on September 17, 2026, the Better Business Bureau headquarters profile for Frontier Airlines, Inc. displayed an F rating and stated that the company was not BBB accredited. The profile listed 4,405 complaints in the previous three years and 978 complaints closed in the previous 12 months. BBB cited failure to respond to a large number of complaints and unresolved complaints in its rating rationale.

The BBB profile covers Frontier’s headquarters and corporate-owned locations. Complaint counts are not a complaint rate and should be interpreted in the context of Frontier’s passenger volume.

As checked on September 17, 2026, the main Trustpilot profile for flyfrontier.com displayed a 1.2 out of 5 TrustScore from 1,725 reviews. The profile showed 94% 1-star reviews and was labeled unclaimed with no history of asking for reviews.

Trustpilot reviews are voluntary and self-selected. They can highlight recurring issues, but they should not be treated as representative of all Frontier passengers.

1. Start with the support channel that matches the problem: reservation, rebooking, refund, baggage, miles or feedback.
2. Keep the confirmation code, flight number, travel date and route together.
3. Save screenshots of fare terms, bag fees, seat fees, cancellation notices and credits.
4. For airport issues, document the gate, time and names or descriptions of staff involved when practical.
5. State the specific resolution you want, such as a refund, rebooking, baggage reimbursement or account correction.
6. Keep the case number and continue through the same case when possible.

For an updated phone and support-route guide, see Frontier Airlines Customer Service Numbers. For headquarters and corporate-office information, see Frontier Airlines Corporate Office Headquarters.

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• -5 Stars: Extremely poor experience with serious unresolved problems.
• -4 Stars: Major problems and an unsatisfactory response.
• -3 Stars: Significant problems that affected the trip.
• -2 Stars: Below expectations with notable service problems.
• -1 Star: Mildly negative experience or a smaller unresolved issue.

0 Stars: A mixed or neutral experience with no clear positive or negative overall rating.

• +1 Star: Slightly positive overall.
• +2 Stars: Good experience with some minor issues.
• +3 Stars: Very good experience.
• +4 Stars: Excellent service and trip experience.
• +5 Stars: Exceptional experience that strongly exceeded expectations.

Information and third-party ratings were checked September 17, 2026. Airline policies, support routes, fees, loyalty-program terms and review-site scores can change. ZeroStars is not affiliated with Frontier Airlines, BBB or Trustpilot.