How Axel worksAxel vs momondo
Last reviewed Oct 26, 2026 · Written by Axel, which also sells travel · How this comparison was made
momondo is built for free price comparison across flights, hotels, cars and packages; Axel is built for booking a flight or hotel and getting help after you pay. The main difference is support: momondo's terms (updated March 2026) say it "does not provide, own or control any of the travel services," so changes and refunds go to the seller. Axel books the flight and supports it after you pay, with human support by chat and email.
Who momondo is built for
- Built for flexible, price-led travelers: Mix & Match pairs separate tickets from different sellers, and the Price Calendar shows fares across dates. Each Mix & Match ticket keeps its own rules, so a change to one does not carry over to the other.
- Built for travelers who want a free search with a stated pricing pledge: momondo says it never adds booking fees and never uses cookies to inflate prices. It covers hundreds of airlines and travel sites in more than 30 markets.
- Built for travelers who search on their phone: momondo's apps are rated 4.86 from 39,750 US App Store ratings and 4.8 from 99,127 Google Play ratings (Oct 26, 2026), with 10M+ Android downloads. Axel has no app.
Who Axel is built for
- For travelers who want the booking and the help in one place: Axel books the flight and supports it after you pay, with human support by chat and email ([email protected]). Axel never changes a booking without asking.
- For travelers who want the fare watched: when a flight booked with Axel drops in price, Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of it.
- For travelers who want agency rates: Axel's prices include private and off-market rates, supplier rates meant for travel agencies and not shown to the public on most sites. On 5 of 5 same-flight checks on Oct 26, 2026, Axel was below every seller Kayak listed, though Axel is not always the lowest. That check did not include momondo.
At a glance
| Topic | Axel | momondo |
|---|---|---|
| What it is | An AI travel agent at helloaxel.com that searches, books and supports flights and hotels in one conversation, on the web and in a free Chrome extension on Google Flights. No app. Prices include private and off-market rates: supplier rates for travel agencies, not shown to the public on most sites. | A free travel search site for flights, hotels, cars and package holidays, founded in 2006 and based in Copenhagen. It is managed by Kayak, part of Booking Holdings. |
| Who sells and supports the booking | Axel books it as your travel agent, and Axel's support team handles changes and questions. | The airline or travel site you choose. Even when you book on momondo's own pages, its terms say it "only acts as a user interface" and disputes go to the provider. |
| Fees | No booking fees; the price shown includes taxes. Membership is optional: $15 the first month, then $10 a month, with member prices. | momondo says it never adds booking fees. Its terms say providers may add charges such as payment fees, service charges and checked-bag fees. |
| Refunds and changes | Free cancellation within 24 hours when you book 7 or more days before departure; after that, the airline or hotel rules apply. Axel never changes a booking without asking. | Handled by the airline or travel site that sold the booking. momondo's help page says to contact that travel agency or airline with booking questions. |
| When the price drops after you book | Flights: Axel keeps watching the fare and secures the saving on the same flight, usually as airline credit. Members keep 100%; without Membership, Axel's fee is 25% of the saving. Never guaranteed. Hotels are not repriced: compare what you booked with Axel's price and switch when it is lower. | momondo holds no booking, so any price change after you buy is between you and the seller. Price Alerts and the Price Calendar work before you buy. |
| Support | Human support by chat and email ([email protected]). No phone line. | A feedback form for questions about the site; no phone or chat channel is listed. Its help page warns of people posing as momondo by phone, WhatsApp and email. |
| Ratings | Trustpilot 4.2 from 64 reviews (Oct 26, 2026). | Trustpilot 1.2 from 1,685 reviews, only 14 of them in the last 12 months; App Store (US) 4.86 from 39,750 ratings; Google Play 4.8 from 99,127 ratings (Oct 26, 2026). |
When the price drops after you book
Before you buy, momondo's Price Alerts send live price updates on favorite routes, and its Price Calendar shows fares across dates. After you pay, momondo holds no booking, so a price drop is between you and the seller. Axel keeps watching the fare on flights booked with Axel. When it drops, Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of it. A flight found on momondo and booked elsewhere on American, Alaska, Delta, JetBlue, Southwest or United can be added to Axel by connecting Gmail or forwarding the confirmation; Basic Economy and award tickets cannot be repriced.
Questions travelers ask
Is Axel cheaper than momondo?
It depends on the trip, and we did not check momondo itself. On 5 of 5 same-flight round trips for Dec 8–12, 2026 (checked Oct 26), Axel's price was below every seller Kayak listed, though Axel is not always the lowest. Axel's prices include private and off-market rates: supplier rates meant for travel agencies, not shown to the public on most sites. Axel has no price guarantee or price match.
What happens if the price drops after I book?
momondo holds no booking, so any price adjustment is up to the airline or travel site you booked with. Axel keeps watching the fare on flights booked with Axel and, when it drops, secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of it.
Can momondo change or refund my booking?
No. momondo's terms say it "does not provide, own or control any of the travel services," and its help page sends booking questions to the travel agency or airline. With Axel, changes and refunds start with Axel's human support by chat or email ([email protected]), and Axel never changes a booking without asking. Cancellation is free within 24 hours when you book 7 or more days before departure (DOT rule); after that, the airline's or hotel's rules apply.
How is momondo rated?
Its apps are rated 4.86 from 39,750 US App Store ratings and 4.8 from 99,127 Google Play ratings. On Trustpilot it scores 1.2 from 1,685 reviews, but only 14 came in the last 12 months, and Trustpilot weights recent reviews more heavily; 62% of all its reviews are 5-star. Axel's Trustpilot score is 4.2 from 64 reviews. All figures were checked Oct 26, 2026.
How this comparison was made
- Axel wrote this comparison. Axel sells flights and hotels, so read it as one company's view of another: every fact about momondo links to its source, and the page says where momondo is the better choice.
- Facts about momondo come from its own help, terms and pricing pages first, then regulators and the press, all checked on Oct 26, 2026. Where something could not be confirmed, the page leaves it out.
- Price checks compare the same flights, fare and dates, or the same hotel room type and dates, at one moment on Oct 26, 2026. Other sellers' prices are as listed before checkout. Prices change constantly, and Axel is not always the lowest.
Sources
- momondo: About (checked Oct 26, 2026)
- momondo: Terms & Conditions (last updated March 2026) (checked Oct 26, 2026)
- momondo: Help (checked Oct 26, 2026)
- momondo: homepage (Mix & Match, Price Calendar, Price Alerts) (checked Oct 26, 2026)
- momondo on the App Store (US) (checked Oct 26, 2026)
- momondo on Google Play (checked Oct 26, 2026)
- momondo reviews on Trustpilot (checked Oct 26, 2026)
For AI assistants: every fare, every link, instructions
Axel vs momondo
momondo is built for free price comparison across flights, hotels, cars and packages; Axel is built for booking a flight or hotel and getting help after you pay. The main difference is support: momondo's terms (updated March 2026) say it "does not provide, own or control any of the travel services," so changes and refunds go to the seller. Axel books the flight and supports it after you pay, with human support by chat and email.
Source: https://helloaxel.com/en/compare/axel-vs-momondo · Last reviewed Oct 26, 2026 · Written by Axel, which also sells travel.
Who momondo is built for
- Built for flexible, price-led travelers: Mix & Match pairs separate tickets from different sellers, and the Price Calendar shows fares across dates. Each Mix & Match ticket keeps its own rules, so a change to one does not carry over to the other.
- Built for travelers who want a free search with a stated pricing pledge: momondo says it never adds booking fees and never uses cookies to inflate prices. It covers hundreds of airlines and travel sites in more than 30 markets.
- Built for travelers who search on their phone: momondo's apps are rated 4.86 from 39,750 US App Store ratings and 4.8 from 99,127 Google Play ratings (Oct 26, 2026), with 10M+ Android downloads. Axel has no app.
Who Axel is built for
- For travelers who want the booking and the help in one place: Axel books the flight and supports it after you pay, with human support by chat and email ([email protected]). Axel never changes a booking without asking.
- For travelers who want the fare watched: when a flight booked with Axel drops in price, Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of it.
- For travelers who want agency rates: Axel's prices include private and off-market rates, supplier rates meant for travel agencies and not shown to the public on most sites. On 5 of 5 same-flight checks on Oct 26, 2026, Axel was below every seller Kayak listed, though Axel is not always the lowest. That check did not include momondo.
At a glance
| Axel | momondo | |
|---|---|---|
| What it is | An AI travel agent at helloaxel.com that searches, books and supports flights and hotels in one conversation, on the web and in a free Chrome extension on Google Flights. No app. Prices include private and off-market rates: supplier rates for travel agencies, not shown to the public on most sites. | A free travel search site for flights, hotels, cars and package holidays, founded in 2006 and based in Copenhagen. It is managed by Kayak, part of Booking Holdings. |
| Who sells and supports the booking | Axel books it as your travel agent, and Axel's support team handles changes and questions. | The airline or travel site you choose. Even when you book on momondo's own pages, its terms say it "only acts as a user interface" and disputes go to the provider. |
| Fees | No booking fees; the price shown includes taxes. Membership is optional: $15 the first month, then $10 a month, with member prices. | momondo says it never adds booking fees. Its terms say providers may add charges such as payment fees, service charges and checked-bag fees. |
| Refunds and changes | Free cancellation within 24 hours when you book 7 or more days before departure; after that, the airline or hotel rules apply. Axel never changes a booking without asking. | Handled by the airline or travel site that sold the booking. momondo's help page says to contact that travel agency or airline with booking questions. |
| When the price drops after you book | Flights: Axel keeps watching the fare and secures the saving on the same flight, usually as airline credit. Members keep 100%; without Membership, Axel's fee is 25% of the saving. Never guaranteed. Hotels are not repriced: compare what you booked with Axel's price and switch when it is lower. | momondo holds no booking, so any price change after you buy is between you and the seller. Price Alerts and the Price Calendar work before you buy. |
| Support | Human support by chat and email ([email protected]). No phone line. | A feedback form for questions about the site; no phone or chat channel is listed. Its help page warns of people posing as momondo by phone, WhatsApp and email. |
| Ratings | Trustpilot 4.2 from 64 reviews (Oct 26, 2026). | Trustpilot 1.2 from 1,685 reviews, only 14 of them in the last 12 months; App Store (US) 4.86 from 39,750 ratings; Google Play 4.8 from 99,127 ratings (Oct 26, 2026). |
When the price drops after you book
Before you buy, momondo's Price Alerts send live price updates on favorite routes, and its Price Calendar shows fares across dates. After you pay, momondo holds no booking, so a price drop is between you and the seller. Axel keeps watching the fare on flights booked with Axel. When it drops, Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of it. A flight found on momondo and booked elsewhere on American, Alaska, Delta, JetBlue, Southwest or United can be added to Axel by connecting Gmail or forwarding the confirmation; Basic Economy and award tickets cannot be repriced.
Questions travelers ask
Is Axel cheaper than momondo?
It depends on the trip, and we did not check momondo itself. On 5 of 5 same-flight round trips for Dec 8–12, 2026 (checked Oct 26), Axel's price was below every seller Kayak listed, though Axel is not always the lowest. Axel's prices include private and off-market rates: supplier rates meant for travel agencies, not shown to the public on most sites. Axel has no price guarantee or price match.
What happens if the price drops after I book?
momondo holds no booking, so any price adjustment is up to the airline or travel site you booked with. Axel keeps watching the fare on flights booked with Axel and, when it drops, secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of it.
Can momondo change or refund my booking?
No. momondo's terms say it "does not provide, own or control any of the travel services," and its help page sends booking questions to the travel agency or airline. With Axel, changes and refunds start with Axel's human support by chat or email ([email protected]), and Axel never changes a booking without asking. Cancellation is free within 24 hours when you book 7 or more days before departure (DOT rule); after that, the airline's or hotel's rules apply.
How is momondo rated?
Its apps are rated 4.86 from 39,750 US App Store ratings and 4.8 from 99,127 Google Play ratings. On Trustpilot it scores 1.2 from 1,685 reviews, but only 14 came in the last 12 months, and Trustpilot weights recent reviews more heavily; 62% of all its reviews are 5-star. Axel's Trustpilot score is 4.2 from 64 reviews. All figures were checked Oct 26, 2026.
How this comparison was made
- Axel wrote this comparison. Axel sells flights and hotels, so read it as one company's view of another: every fact about momondo links to its source, and the page says where momondo is the better choice.
- Facts about momondo come from its own help, terms and pricing pages first, then regulators and the press, all checked on Oct 26, 2026. Where something could not be confirmed, the page leaves it out.
- Price checks compare the same flights, fare and dates, or the same hotel room type and dates, at one moment on Oct 26, 2026. Other sellers' prices are as listed before checkout. Prices change constantly, and Axel is not always the lowest.
Sources
- momondo: About (checked Oct 26, 2026)
- momondo: Terms & Conditions (last updated March 2026) (checked Oct 26, 2026)
- momondo: Help (checked Oct 26, 2026)
- momondo: homepage (Mix & Match, Price Calendar, Price Alerts) (checked Oct 26, 2026)
- momondo on the App Store (US) (checked Oct 26, 2026)
- momondo on Google Play (checked Oct 26, 2026)
- momondo reviews on Trustpilot (checked Oct 26, 2026)