If bidding for domestic itineraries, you can still determine non-stop vs connecting. The "trick" in your initial bid is to low-ball enough that your bid won't be accepted and you receive a counteroffer in return. As you formulate your initial bid, Priceline will require you to agree to be charged the maximum amount of Gov't taxes/airline and agent fees (Priceline being the "agent" in this case)before submitting your bid. At this stage, Priceline's computer hasn't yet searched for an airline (and routing) that will accept your bid, thus their quoting the maximum amount of taxes/fees initially. When the counteroffer arrives, the actual taxes/fees, based on the routing to be assigned, will be broken down and separate the fare from the taxes/fees. At this point, the actual routing has been determined by Priceline's computer unlike when you were formulating your initial bid before submission. I put this to the test by bidding a one-way flight from SFO to MIA for tomorrow, August 1. During the bid formulation stage, Priceline required me to agree to taxes/fees of $39.85. As expected, my $10 bid (plus $39.85) was rejected. However I received 3 counteroffers as follows: 1. $266.30 if I was willing to fly SFO-FLL (instead of to MIA). The breakdown was $248.05 for the fare and $18.25 in taxes/fees. 2. $307.68 if I was willing to fly SJC-MIA. Breakdown of $278.63 fare and $29.05 taxes/fees 3. $338.71 for SFO-MIA (my initial choice of airports). Breakdown of $278.63 fare and $29.05 taxes/fees. Notice the taxes/fees in all 3 counteroffers were lower than the $39.85 Priceline initially required me to authorize. (this is the reason you low-ball your initial bid so as to review the counteroffers in order to see the actual taxes/fees) and determine non-stop vs. connecting) The first counteroffer from SFO-FLL w/$18.25 in taxes/fees indicates a non-stop routing. This breaks down as follows: $2.50 Sept 11 security fee $4.50 SFO Passenger Facility Charge (PFC) $3.80 US Flight Segment tax $7.45 Priceline transation fee ("Agent" fees). $18.25 total The second and third counteroffers w/$29.05 in taxes/fees indicates a connecting itinerary with the following breakdown: $5.00 Sept 11 security fee ($2.50 per flight segment) $9.00 PFC ($4.50 SFO and $4.50 at the connecting airport) $7.60 US Flight Segment tax $7.45 Priceline transaction fee $29.05 total So if we agree the SFO-FLL itinerary will be a one-segment non-stop flight, the irony in this specific scenario is that you'll also know the exact flight you'll be assigned. There are a total of 3 nonstop flights tomorrow between SFO and FLL. A redeye on each Virgin America and JetBlue and one daylight flight on Virgin. In my initial bid, Priceline said I could depart anytime between 6:00am and 10:00pm, however said I would arrive at my destination no later than 12:30am, thus eliminating the chance of being assigned a red-eye. That only leaves one possible flight, the 7:50am nonstop flight on Virgin America. Of course if you're bidding a route that has multiple non-stop flights you won't be able to break it down that close! But this worked for me a few years ago when bidding SFO-MCO (Orlando) when at that time there was only 1 nonstop flight between the two airports. Worked like a charm... A few things to keep in mind..... 1. Unlike rebidding for hotels, where the number of free rebids are limited by surronding zones and star levels offered, you can enter unlimited airfare bids by entering a different origin city each time. By origin city I don't mean your departure airport. For the SFO-MIA bid, enter any surrouding city/town nearby SFO, such as San Mateo, for example as your origin city. On the next page, Priceline will ask to you select a departure airport (SFO, OAK, SJC). Assuming your initial bid is rejected, go back to the Priceline home page and this time enter Burlingame (another SFO-area town) as your origin city. Priceline will not consider your two bids as duplicates since you entered two different cities as your origin, despite the fact you selected the same airport (SFO) to depart from. 2. Again, unlike hotel counteroffers that appear sporadically, almost any rejected airline bid will produce a counteroffer. Let's just say I've never not received a counteroffer on any air fare bid. In the event no airline has any NYOP inventory available on your routing and travel date, Priceline will respond with retail purchase options. 3. This time like hotel counteroffers, Priceline will generally accept less than the counteroffer amount in air fare bids.