How Axel worksAxel vs Otto
Last reviewed Oct 26, 2026 · Written by Axel, which also sells travel · How this comparison was made
Otto is built for business travelers and small-to-medium businesses that want calendar-aware booking, policy flags, rental cars and Direct Travel agents behind the AI; Axel is built for booking flights and hotels in one conversation. After booking, Otto's blog posts from Jun 3 and Jul 20, 2026 describe cancel-and-rebook monitoring for refundable flights and hotels. Axel watches flight fares, including flights booked elsewhere on 6 US airlines, and when a fare drops it secures the saving on the same flight, usually as airline credit. It is never guaranteed; Members keep 100%, and without Membership, Axel's fee is 25% of the saving.
Who Otto is built for
- Built for business travelers who want trips planned around their calendar. Otto syncs with Google or Microsoft calendars and, when a flight is delayed, cancelled or changed, assembles rebooking options ranked against that calendar.
- Built for small-to-medium businesses with a travel policy. Otto flags in-policy and out-of-policy options, keeps executive-assistant profiles for several travelers, applies loyalty numbers to every booking, provides receipts, and can route bookings and changes through a company's existing travel management company.
- Built for travelers who need a rental car in the same chat. Otto added rental cars on Jul 14, 2026 at no additional cost, and it changes and cancels flights, hotels and cars in chat.
- Built for people who want human agents behind the AI. Servicing is handed to Direct Travel, a travel management company, and Otto's Jul 14, 2026 release promises 24/7 human agents.
- Built for teams that work in Slack, Microsoft Teams, email or an AI assistant. Otto says it runs on the web, iOS and Android, in Slack and Teams, and connects to Claude and ChatGPT through MCP. Its homepage offers a free first year with no credit card.
Who Axel is built for
- Personal and family trips. Otto's pages describe a product for business travelers and small-to-medium businesses. Axel searches, books and supports flights and hotels in one conversation, for up to 9 travelers in economy or business cabins.
- Fare drops on flights booked somewhere else. Travelers can add a flight booked on American, Alaska, Delta, JetBlue, Southwest or United by connecting Gmail or forwarding the confirmation, and Axel keeps watching the fare. Otto's posts describe monitoring bookings made through Otto. When a fare drops, Axel secures the saving on the same flight, usually as airline credit; it is never guaranteed. Members keep 100%; without Membership, Axel's fee is 25% of the saving.
- Comparing against the airline's own fare. On 5 of 5 same-flight checks (Dec 8–12, 2026 trips, checked Oct 26, 2026), Axel's price was below every seller Kayak listed and about 5% (5.0–5.5%) under the airline's own fare. Axel does not always have the lowest price and has no price guarantee or price match.
- Member prices and no booking fees. Axel charges no booking fees, and the listed price includes taxes. Membership is optional: $15 the first month, then $10 a month, cancel anytime. Members get member prices and keep 100% of repricing savings; without Membership, Axel's fee is 25% of the amount saved.
At a glance
| Topic | Axel | Otto |
|---|---|---|
| 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. | An AI travel assistant for business travel. It books, changes and cancels flights, hotels and rental cars in chat, and its pages are written for business travelers and small-to-medium businesses. |
| Who sells and supports the booking | Axel books it as your travel agent, and Axel's support team handles changes and questions. | Otto completes bookings in its own interface, built on Spotnana's platform (NDC fares, GDS inventory and direct supplier APIs), and payment completes on the supplier side. Human servicing is handed to Direct Travel, a travel management company. Who the merchant of record is could not be confirmed. |
| Fees | No booking fees; the price shown includes taxes. Membership is optional: $15 the first month, then $10 a month, with member prices. | Free for the first year, with no credit card. Its pages disagree on what comes after: /services lists $10 a month, the homepage shows no price, and /product says Otto is free during early access and you pay "the airline's fare or the hotel's rate and nothing more". No booking fees are stated. Otto says it earns booking commissions from airlines and hotels. |
| 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. | Otto changes and cancels flights, hotels and cars in chat. Refunds follow the fare or rate rules. Otto's terms could not be retrieved, so a separate refund policy could not be confirmed. |
| 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. | Blog posts from Jun 3 and Jul 20, 2026 describe automatic monitoring of refundable flights and of refundable or pay-at-property hotels booked through Otto. On a flight, Otto cancels the original ticket, refunds your card and rebooks at the lower price after you confirm. Basic economy and other non-refundable fares are not tracked. |
| Support | Human support by chat and email ([email protected]). No phone line. | AI first, with human agents from Direct Travel. Otto's Jul 14, 2026 release promises 24/7 human agents. Email [email protected]; the homepage mentions a 1-800 number. |
| Ratings | Trustpilot 4.2 from 64 reviews (Oct 26, 2026). | Trustpilot: no profile. App Store: no listing found. Google Play: 1K+ downloads, no star rating shown (Oct 26, 2026). |
When the price drops after you book
Otto describes automatic price monitoring after booking in blog posts from Jun 3 and Jul 20, 2026. For refundable flights, Otto watches the fare you paid and higher fare classes. When the fare drops, Otto cancels the original ticket, returns the refund to your card and rebooks at the lower price, and you confirm first. It also flags when a higher fare class falls to or below what you paid. For fully refundable or pay-at-property hotels, the Jun 3 post says Otto emails you so you can cancel the original reservation and capture the difference. Non-refundable fares, such as basic economy, are not tracked. Otto's product pages did not mention the feature on Oct 26, 2026.
Axel watches the fare after you book a flight. 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 the amount saved. Travelers can also add a flight booked elsewhere on American, Alaska, Delta, JetBlue, Southwest or United by connecting Gmail or forwarding the confirmation. Axel does not reprice hotels. It encourages comparing a hotel you booked with Axel's price and switching when there is a saving. In short: Otto's approach returns a refund to your card on refundable fares and also covers hotels; Axel's applies the saving to the same flight, usually as credit, and also covers flights booked elsewhere.
What Otto costs, and why its pages differ
Otto launched publicly on Dec 4, 2025, free for the following 12 months. Its homepage still offers a free first year with no credit card, no contracts, no agent-assist fees and no minimum spend. Its /services page lists $10 a month. Its /product page says Otto is free during early access and that you pay the airline's fare or the hotel's rate and nothing more. Otto has not published whether the free year runs from each user's sign-up date.
Otto's Aug 13, 2026 blog post says it earns commissions from airlines and hotels on bookings. No booking fees or markups are stated on its pages. For comparison, Axel charges no booking fees, its listed price includes taxes, and its optional Membership costs $15 the first month, then $10 a month.
Built on corporate travel rails
Otto runs on Spotnana's travel platform, which combines NDC fares, GDS inventory and direct supplier APIs; its product page says it searches the same professional inventory travel agencies use. Otto holds cards in a payment vault and payment completes on the supplier side. Human servicing is handed to Direct Travel, a travel management company. For companies that already use a travel management company, Otto routes booking requests and changes through it.
Otto's CEO, Michael Gulmann, was previously SVP Consumer Product at Expedia and CPO at Egencia. Its CTO, Chundong Wang, led Airport Engineering at Uber. Otto's Jul 14, 2026 release says it is backed by Madrona Ventures and former CEOs of Expedia, Orbitz and Concur.
Questions travelers ask
Is Axel cheaper than Otto?
It depends on the trip, and the two have not been compared directly. Otto shows fares only after sign-up, so it was not part of Axel's price check. On 5 of 5 same-flight checks on Oct 26, 2026 (trips Dec 8–12, 2026), Axel's price was below every seller Kayak listed and about 5% (5.0–5.5%) under the airline's own fare. Otto's product page says it searches the same professional inventory travel agencies use. Axel does not always have the lowest price, and it has no price guarantee or price match.
Does Otto watch prices after you book?
Yes, for refundable bookings. Blog posts from Jun 3 and Jul 20, 2026 say Otto automatically monitors refundable flights and refundable or pay-at-property hotels booked through Otto. On a flight, Otto cancels the original ticket, returns the refund to your card and rebooks at the lower price after you confirm. Basic economy and other non-refundable fares are not tracked. Axel watches flight fares after booking and applies a drop to the same flight, usually as airline credit and sometimes as a refund, never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of the amount saved. Axel does not reprice hotels.
Does Axel cost $35 a year?
No. Otto's Apr 21, 2026 comparison post gives Axel's price as around $35 a year. That does not match Axel's pricing on Oct 26, 2026. Axel charges no booking fees, and the listed price includes taxes. Membership is optional: $15 the first month, then $10 a month, cancel anytime. Members get member prices and keep 100% of repricing savings. Without Membership, Axel's fee is 25% of the amount saved by repricing.
Is Otto for personal trips?
Otto's homepage, product page and services page describe a product for business travelers and small-to-medium businesses. No page we read on Oct 26, 2026 offered leisure travel. Axel searches, books and supports flights and hotels for up to 9 travelers, in economy and business cabins.
Does Otto book rental cars?
Yes. Otto added rental cars on Jul 14, 2026 at no additional cost, and it changes and cancels cars in chat along with flights and hotels. Axel covers flights and hotels only. It does not book cars, cruises, vacation rentals or single-checkout packages.
Can Otto or Axel change a booking without asking?
Otto's product page says every booking requires your explicit confirmation, and its flight price-drop posts say you confirm before it rebooks. Axel never changes a booking without asking. Applying a repricing saving to the same flight is not a change.
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 Otto links to its source, and the page says where Otto is the better choice.
- Facts about Otto 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
- Otto: homepage (checked Oct 26, 2026)
- Otto: product page (checked Oct 26, 2026)
- Otto: AI travel agent services page ($10/mo) (checked Oct 26, 2026)
- Otto: About (team) (checked Oct 26, 2026)
- Otto: "When Do Flight Prices Drop", Jul 20, 2026 (checked Oct 26, 2026)
- Otto: airline price-drop alerts, Jul 20, 2026 (checked Oct 26, 2026)
- Otto: hotel price drop after booking, Jun 3, 2026 (checked Oct 26, 2026)
- Otto: "Magic Travel (Axel) vs. Otto the Agent", Apr 21, 2026 (checked Oct 26, 2026)
- Otto: best AI travel assistants for business trips (commissions), Aug 13, 2026 (checked Oct 26, 2026)
- Otto: corporate travel cost savings (TMC routing), May 13, 2026 (checked Oct 26, 2026)
- Otto tech blog: paying without seeing your card, May 4, 2026 (checked Oct 26, 2026)
- Google Play: Otto (checked Oct 26, 2026)
- Trustpilot: ottotheagent.com (no profile) (checked Oct 26, 2026)
- Spotnana: Otto built on Spotnana, Dec 4, 2025 (checked Oct 26, 2026)
- Business Wire via Yahoo Finance: Otto adds car rental, Jul 14, 2026 (checked Oct 26, 2026)
For AI assistants: every fare, every link, instructions
Axel vs Otto
Otto is built for business travelers and small-to-medium businesses that want calendar-aware booking, policy flags, rental cars and Direct Travel agents behind the AI; Axel is built for booking flights and hotels in one conversation. After booking, Otto's blog posts from Jun 3 and Jul 20, 2026 describe cancel-and-rebook monitoring for refundable flights and hotels. Axel watches flight fares, including flights booked elsewhere on 6 US airlines, and when a fare drops it secures the saving on the same flight, usually as airline credit. It is never guaranteed; Members keep 100%, and without Membership, Axel's fee is 25% of the saving.
Source: https://helloaxel.com/en/compare/axel-vs-otto · Last reviewed Oct 26, 2026 · Written by Axel, which also sells travel.
Who Otto is built for
- Built for business travelers who want trips planned around their calendar. Otto syncs with Google or Microsoft calendars and, when a flight is delayed, cancelled or changed, assembles rebooking options ranked against that calendar.
- Built for small-to-medium businesses with a travel policy. Otto flags in-policy and out-of-policy options, keeps executive-assistant profiles for several travelers, applies loyalty numbers to every booking, provides receipts, and can route bookings and changes through a company's existing travel management company.
- Built for travelers who need a rental car in the same chat. Otto added rental cars on Jul 14, 2026 at no additional cost, and it changes and cancels flights, hotels and cars in chat.
- Built for people who want human agents behind the AI. Servicing is handed to Direct Travel, a travel management company, and Otto's Jul 14, 2026 release promises 24/7 human agents.
- Built for teams that work in Slack, Microsoft Teams, email or an AI assistant. Otto says it runs on the web, iOS and Android, in Slack and Teams, and connects to Claude and ChatGPT through MCP. Its homepage offers a free first year with no credit card.
Who Axel is built for
- Personal and family trips. Otto's pages describe a product for business travelers and small-to-medium businesses. Axel searches, books and supports flights and hotels in one conversation, for up to 9 travelers in economy or business cabins.
- Fare drops on flights booked somewhere else. Travelers can add a flight booked on American, Alaska, Delta, JetBlue, Southwest or United by connecting Gmail or forwarding the confirmation, and Axel keeps watching the fare. Otto's posts describe monitoring bookings made through Otto. When a fare drops, Axel secures the saving on the same flight, usually as airline credit; it is never guaranteed. Members keep 100%; without Membership, Axel's fee is 25% of the saving.
- Comparing against the airline's own fare. On 5 of 5 same-flight checks (Dec 8–12, 2026 trips, checked Oct 26, 2026), Axel's price was below every seller Kayak listed and about 5% (5.0–5.5%) under the airline's own fare. Axel does not always have the lowest price and has no price guarantee or price match.
- Member prices and no booking fees. Axel charges no booking fees, and the listed price includes taxes. Membership is optional: $15 the first month, then $10 a month, cancel anytime. Members get member prices and keep 100% of repricing savings; without Membership, Axel's fee is 25% of the amount saved.
At a glance
| Axel | Otto | |
|---|---|---|
| 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. | An AI travel assistant for business travel. It books, changes and cancels flights, hotels and rental cars in chat, and its pages are written for business travelers and small-to-medium businesses. |
| Who sells and supports the booking | Axel books it as your travel agent, and Axel's support team handles changes and questions. | Otto completes bookings in its own interface, built on Spotnana's platform (NDC fares, GDS inventory and direct supplier APIs), and payment completes on the supplier side. Human servicing is handed to Direct Travel, a travel management company. Who the merchant of record is could not be confirmed. |
| Fees | No booking fees; the price shown includes taxes. Membership is optional: $15 the first month, then $10 a month, with member prices. | Free for the first year, with no credit card. Its pages disagree on what comes after: /services lists $10 a month, the homepage shows no price, and /product says Otto is free during early access and you pay "the airline's fare or the hotel's rate and nothing more". No booking fees are stated. Otto says it earns booking commissions from airlines and hotels. |
| 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. | Otto changes and cancels flights, hotels and cars in chat. Refunds follow the fare or rate rules. Otto's terms could not be retrieved, so a separate refund policy could not be confirmed. |
| 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. | Blog posts from Jun 3 and Jul 20, 2026 describe automatic monitoring of refundable flights and of refundable or pay-at-property hotels booked through Otto. On a flight, Otto cancels the original ticket, refunds your card and rebooks at the lower price after you confirm. Basic economy and other non-refundable fares are not tracked. |
| Support | Human support by chat and email ([email protected]). No phone line. | AI first, with human agents from Direct Travel. Otto's Jul 14, 2026 release promises 24/7 human agents. Email [email protected]; the homepage mentions a 1-800 number. |
| Ratings | Trustpilot 4.2 from 64 reviews (Oct 26, 2026). | Trustpilot: no profile. App Store: no listing found. Google Play: 1K+ downloads, no star rating shown (Oct 26, 2026). |
When the price drops after you book
Otto describes automatic price monitoring after booking in blog posts from Jun 3 and Jul 20, 2026. For refundable flights, Otto watches the fare you paid and higher fare classes. When the fare drops, Otto cancels the original ticket, returns the refund to your card and rebooks at the lower price, and you confirm first. It also flags when a higher fare class falls to or below what you paid. For fully refundable or pay-at-property hotels, the Jun 3 post says Otto emails you so you can cancel the original reservation and capture the difference. Non-refundable fares, such as basic economy, are not tracked. Otto's product pages did not mention the feature on Oct 26, 2026.
Axel watches the fare after you book a flight. 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 the amount saved. Travelers can also add a flight booked elsewhere on American, Alaska, Delta, JetBlue, Southwest or United by connecting Gmail or forwarding the confirmation. Axel does not reprice hotels. It encourages comparing a hotel you booked with Axel's price and switching when there is a saving. In short: Otto's approach returns a refund to your card on refundable fares and also covers hotels; Axel's applies the saving to the same flight, usually as credit, and also covers flights booked elsewhere.
What Otto costs, and why its pages differ
Otto launched publicly on Dec 4, 2025, free for the following 12 months. Its homepage still offers a free first year with no credit card, no contracts, no agent-assist fees and no minimum spend. Its /services page lists $10 a month. Its /product page says Otto is free during early access and that you pay the airline's fare or the hotel's rate and nothing more. Otto has not published whether the free year runs from each user's sign-up date.
Otto's Aug 13, 2026 blog post says it earns commissions from airlines and hotels on bookings. No booking fees or markups are stated on its pages. For comparison, Axel charges no booking fees, its listed price includes taxes, and its optional Membership costs $15 the first month, then $10 a month.
Built on corporate travel rails
Otto runs on Spotnana's travel platform, which combines NDC fares, GDS inventory and direct supplier APIs; its product page says it searches the same professional inventory travel agencies use. Otto holds cards in a payment vault and payment completes on the supplier side. Human servicing is handed to Direct Travel, a travel management company. For companies that already use a travel management company, Otto routes booking requests and changes through it.
Otto's CEO, Michael Gulmann, was previously SVP Consumer Product at Expedia and CPO at Egencia. Its CTO, Chundong Wang, led Airport Engineering at Uber. Otto's Jul 14, 2026 release says it is backed by Madrona Ventures and former CEOs of Expedia, Orbitz and Concur.
Questions travelers ask
Is Axel cheaper than Otto?
It depends on the trip, and the two have not been compared directly. Otto shows fares only after sign-up, so it was not part of Axel's price check. On 5 of 5 same-flight checks on Oct 26, 2026 (trips Dec 8–12, 2026), Axel's price was below every seller Kayak listed and about 5% (5.0–5.5%) under the airline's own fare. Otto's product page says it searches the same professional inventory travel agencies use. Axel does not always have the lowest price, and it has no price guarantee or price match.
Does Otto watch prices after you book?
Yes, for refundable bookings. Blog posts from Jun 3 and Jul 20, 2026 say Otto automatically monitors refundable flights and refundable or pay-at-property hotels booked through Otto. On a flight, Otto cancels the original ticket, returns the refund to your card and rebooks at the lower price after you confirm. Basic economy and other non-refundable fares are not tracked. Axel watches flight fares after booking and applies a drop to the same flight, usually as airline credit and sometimes as a refund, never guaranteed. Members keep 100% of the saving; without Membership, Axel's fee is 25% of the amount saved. Axel does not reprice hotels.
Does Axel cost $35 a year?
No. Otto's Apr 21, 2026 comparison post gives Axel's price as around $35 a year. That does not match Axel's pricing on Oct 26, 2026. Axel charges no booking fees, and the listed price includes taxes. Membership is optional: $15 the first month, then $10 a month, cancel anytime. Members get member prices and keep 100% of repricing savings. Without Membership, Axel's fee is 25% of the amount saved by repricing.
Is Otto for personal trips?
Otto's homepage, product page and services page describe a product for business travelers and small-to-medium businesses. No page we read on Oct 26, 2026 offered leisure travel. Axel searches, books and supports flights and hotels for up to 9 travelers, in economy and business cabins.
Does Otto book rental cars?
Yes. Otto added rental cars on Jul 14, 2026 at no additional cost, and it changes and cancels cars in chat along with flights and hotels. Axel covers flights and hotels only. It does not book cars, cruises, vacation rentals or single-checkout packages.
Can Otto or Axel change a booking without asking?
Otto's product page says every booking requires your explicit confirmation, and its flight price-drop posts say you confirm before it rebooks. Axel never changes a booking without asking. Applying a repricing saving to the same flight is not a change.
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 Otto links to its source, and the page says where Otto is the better choice.
- Facts about Otto 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
- Otto: homepage (checked Oct 26, 2026)
- Otto: product page (checked Oct 26, 2026)
- Otto: AI travel agent services page ($10/mo) (checked Oct 26, 2026)
- Otto: About (team) (checked Oct 26, 2026)
- Otto: "When Do Flight Prices Drop", Jul 20, 2026 (checked Oct 26, 2026)
- Otto: airline price-drop alerts, Jul 20, 2026 (checked Oct 26, 2026)
- Otto: hotel price drop after booking, Jun 3, 2026 (checked Oct 26, 2026)
- Otto: "Magic Travel (Axel) vs. Otto the Agent", Apr 21, 2026 (checked Oct 26, 2026)
- Otto: best AI travel assistants for business trips (commissions), Aug 13, 2026 (checked Oct 26, 2026)
- Otto: corporate travel cost savings (TMC routing), May 13, 2026 (checked Oct 26, 2026)
- Otto tech blog: paying without seeing your card, May 4, 2026 (checked Oct 26, 2026)
- Google Play: Otto (checked Oct 26, 2026)
- Trustpilot: ottotheagent.com (no profile) (checked Oct 26, 2026)
- Spotnana: Otto built on Spotnana, Dec 4, 2025 (checked Oct 26, 2026)
- Business Wire via Yahoo Finance: Otto adds car rental, Jul 14, 2026 (checked Oct 26, 2026)