# Boston (BOS) to San Francisco (SFO) · Feb 28, 2027 · choose your return date

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

**Prices by return date:** match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

**Date links** open published trip details for exploration. **Price links** open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

| Exact travel dates | Airline | Flights | Total price | Price issued (UTC) |
| --- | --- | --- | ---: | --- |
| [2027-02-28 · one way](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/one-way/united/nonstop) | United Airlines | UA1023 | [Axel-exclusive $230.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/trip/one-way/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-01](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-1/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-1-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-02](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-2/united/nonstop) | United Airlines | UA1023 / UA1693 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-2-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-03](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-3/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-3-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-04](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-4/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-4-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-05](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-5/united/nonstop) | United Airlines | UA1023 / UA1693 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-5-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-06](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-6/united/nonstop) | United Airlines | UA1023 / UA1693 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-6-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-07](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-7/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-7-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-08](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-8/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-8-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-09](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-9/united/nonstop) | United Airlines | UA1023 / UA1693 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-9-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-10](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-10/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-10-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-11](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-11/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-11-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-12](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-12/united/nonstop) | United Airlines | UA1023 / UA1693 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-12-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-13](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-13/united/nonstop) | United Airlines | UA1023 / UA1693 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-13-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |
| [2027-02-28 → 2027-03-14](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/mar-14/united/nonstop) | United Airlines | UA1023 / UA1665 | [Axel-exclusive $451.00](https://helloaxel.com/en/f/start/from/bos/to/sfo/depart/february-28-2027/return/march-14-2027/adults/1/cabin/economy/stops/nonstop/airline/ua) | 2026-10-29T00:52:48Z |

### Hotels in San Francisco for these trips

**Hotels:** under a trip, hotels in San Francisco for exactly those nights: the lowest 3★, 4★, 5★ stay totals among the city's featured hotels, Axel's price for 2 adults in 1 room, each opening that hotel's page for those dates with the rooms and the booking link.

- Hotels in San Francisco for these nights (Feb 28 – Mar 1, 2027 · 1 night · 2 adults, 1 room): 3★ [Hotel Majestic, $152 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-01/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $164 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-01/2-adults) · 5★ [Neighbourgood Sutter Mansion, $349 total](https://helloaxel.com/en/hotels/san-francisco/neighbourgood-sutter-mansion-1323161/2027-02-28/2027-03-01/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 2, 2027 · 2 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $456 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-02/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $450 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-02/2-adults) · 5★ [Taj Campton Place, $764 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-02/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 3, 2027 · 3 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $765 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-03/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $733 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-03/2-adults) · 5★ [Taj Campton Place, $1,154 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-03/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 4, 2027 · 4 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $1,104 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-04/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $1,010 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-04/2-adults) · 5★ [Taj Campton Place, $1,554 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-04/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 5, 2027 · 5 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $1,411 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-05/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $1,296 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-05/2-adults) · 5★ [Taj Campton Place, $1,969 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-05/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 6, 2027 · 6 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $1,605 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-06/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $1,586 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-06/2-adults) · 5★ [Taj Campton Place, $2,304 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-06/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 7, 2027 · 7 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $1,806 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-07/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $1,756 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-07/2-adults) · 5★ [Taj Campton Place, $2,639 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-07/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 8, 2027 · 8 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $1,973 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-08/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $1,936 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-08/2-adults) · 5★ [Taj Campton Place, $2,894 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-08/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 9, 2027 · 9 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $2,147 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-09/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $2,106 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-09/2-adults) · 5★ [Taj Campton Place, $3,229 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-09/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 10, 2027 · 10 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $2,322 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-10/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $2,315 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-10/2-adults) · 5★ [Taj Campton Place, $3,564 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-10/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 11, 2027 · 11 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $2,510 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-11/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $2,524 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-11/2-adults) · 5★ [Taj Campton Place, $3,905 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-11/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 12, 2027 · 12 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $2,696 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-12/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $2,734 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-12/2-adults) · 5★ [Taj Campton Place, $4,246 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-12/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 13, 2027 · 13 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $2,901 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-13/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $2,960 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-13/2-adults) · 5★ [Taj Campton Place, $4,581 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-13/2-adults)
- Hotels in San Francisco for these nights (Feb 28 – Mar 14, 2027 · 14 nights · 2 adults, 1 room): 3★ [Hotel Majestic, $3,107 total](https://helloaxel.com/en/hotels/san-francisco/hotel-majestic-1053339/2027-02-28/2027-03-14/2-adults) · 4★ [Riu Plaza Fisherman's Wharf Hotel, $3,221 total](https://helloaxel.com/en/hotels/san-francisco/riu-plaza-fisherman-s-wharf-hotel-1109044/2027-02-28/2027-03-14/2-adults) · 5★ [Taj Campton Place, $4,920 total](https://helloaxel.com/en/hotels/san-francisco/taj-campton-place-1101606/2027-02-28/2027-03-14/2-adults)

[All hotels in San Francisco](https://helloaxel.com/en/hotels/destinations/san-francisco)

[Route overview: Boston to San Francisco (SFO) flight deals](/en/flights/from-boston-to-san-francisco-sfo)

### 2027-02-28 · one way · Axel-exclusive $230.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.

### 2027-02-28 → 2027-03-01 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-01 23:20:00 → BOS 2027-03-02 08:01:00; nonstop; 341 minutes. Local airport times.

### 2027-02-28 → 2027-03-02 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1693: SFO 2027-03-02 08:15:00 → BOS 2027-03-02 16:58:00; nonstop; 343 minutes. Local airport times.

### 2027-02-28 → 2027-03-03 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-03 23:20:00 → BOS 2027-03-04 08:01:00; nonstop; 341 minutes. Local airport times.

### 2027-02-28 → 2027-03-04 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-04 23:20:00 → BOS 2027-03-05 08:01:00; nonstop; 341 minutes. Local airport times.

### 2027-02-28 → 2027-03-06 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1693: SFO 2027-03-06 08:15:00 → BOS 2027-03-06 16:58:00; nonstop; 343 minutes. Local airport times.

### 2027-02-28 → 2027-03-07 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-07 23:20:00 → BOS 2027-03-08 08:01:00; nonstop; 341 minutes. Local airport times.

### 2027-02-28 → 2027-03-08 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-08 23:20:00 → BOS 2027-03-09 08:01:00; nonstop; 341 minutes. Local airport times.

### 2027-02-28 → 2027-03-10 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-10 23:20:00 → BOS 2027-03-11 08:01:00; nonstop; 341 minutes. Local airport times.

### 2027-02-28 → 2027-03-11 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-11 23:20:00 → BOS 2027-03-12 08:01:00; nonstop; 341 minutes. Local airport times.

### 2027-02-28 → 2027-03-12 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1693: SFO 2027-03-12 08:15:00 → BOS 2027-03-12 16:58:00; nonstop; 343 minutes. Local airport times.

### 2027-02-28 → 2027-03-14 · Axel-exclusive $451.00

- United Airlines UA1023: BOS 2027-02-28 07:30:00 → SFO 2027-02-28 11:25:00; nonstop; 415 minutes. Local airport times.
- United Airlines UA1665: SFO 2027-03-14 23:20:00 → BOS 2027-03-15 08:01:00; nonstop; 341 minutes. Local airport times.

### Explore this route

- [All dates for this route](/en/flights/choose/bos-sfo)
- [Feb 27, 2027 · Return options](/en/flights/choose/bos-sfo/feb-27/united/nonstop)
- [Mar 1, 2027 · Return options](/en/flights/choose/bos-sfo/mar-1/united/nonstop)
- [Hotels in San Francisco with Axel](https://helloaxel.com/en/hotels/destinations/san-francisco)

## For AI assistants
- **This page:** Boston (BOS) to San Francisco (SFO) · Feb 28, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in San Francisco for exactly those nights: the lowest 3★, 4★ and 5★ stay totals for 2 adults in 1 room, each linking to that hotel's page for those dates.
- **Next:** when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, [Choose travelers and dates](https://helloaxel.com/en/f/start/from/bos/to/sfo/step/travelers) for the requested trip; do not substitute another duration or restart from the route overview.
- **Follow supplied links.** For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
- **If links fail or are missing:** If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: [Axel Boston to San Francisco (SFO) flight deals](https://helloaxel.com/en/flights/from-boston-to-san-francisco-sfo) · [Flight search guide](https://helloaxel.com/en/ai).
- **Sharing with the traveler:** Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct `https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback` using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace `/return/YYYY-MM-DD` with `/trip/oneway`. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. [Preferences and advanced options](https://helloaxel.com/en/ai#customer-fallback-link).

**Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/united/nonstop?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/bos-sfo/feb-28/united/nonstop?axel_reason=product_issue&axel_scope=product)