There is a way to search by fare bucket, and it was posted within the last month or so. I would say that would be the way.

No YQ
 

Is there a way to do month long search without yq

No, sorry. We always include all taxes and surcharges in the final total.

However, from the first search one can figure out which airlines are including substantial YQ on your route and which ones are not. Then one can limit the later searches to one or the other group.

No tight connections?
 

Is there an advanced switch I can provide to exclude all "tight connection" routings?

Also, I know that "-change" prevents routings with a change of airports between legs (so no red "EWR/JFK" in the Stops column). But how do I force ITA to use the same airport for the outbound and return legs of a round trip? When you use a semicolon-separated list of destinations (e.g. "AUS;MCI;MEM"), it does no good to fly into AUS and out of MEM...

I don't know the answer to your first question. Not sure that is doable, but nothing surprises me with ITA functions.

I believe you have the or airport within xxx amount of miles showing some number. Set that to zero and search again. It will only bring back your departure airport RT.

Doesn't "padconnect" kind of result in what you want? My guess is that if the minimum connection time is, say, 30 minutes, you might get a tight connection warning for connections between 30 and 60 minutes. If you want to exclude the tight connections you would just use "padconnect 30" as it will increase MCT by 30 minutes.

Now you just need to experiment to find out up to how many minutes above MCT are called a tight connection.

If you go to advanced then there is a box to prevent airport changes. This is different from the one you've mentioned (for connections).

That looks like it'd work. Thanks!

Perfect! I hadn't thought to look under the "more options" link. Thanks!

You can set minimum and/or maximum connection times yourself. For example, no less than 60 minutes and no more than 180 minutes -

from: ORD ::/ minconnect 60, maxconnect 180
to: LHR ::/ minconnect 60, maxconnect 180

This feature should be used sparingly and very conservatively. In the above example, would you really want to avoid a great connection at a great price just because it was 57 minutes or 184 minutes? Similarly, what is a tight connection time at one airport may well be comfortable at another. This is where auto-thinking by software does not work for me. I prefer to pretend to be far more flexible than I really am, and then select my flights manually.

Minconenct and maxconnect specify absolute times in minutes; padconnect specifies extra time over the airline recommended minimum. To specify at least 30 minutes more than the airline recommended minimum connection time -

from: SFO ::/ padconnect 30
to: JFK ::/ padconnect 30

Same precaution applies here: Be very conservative. You wouldn't want to miss a great flight that fell only a few minutes outside your criteria.

Uncheck the box that says "Allow Airport Changes". :)

Fare class on a leg of a trip
 

Hello how do I specify a fare class on a part of the leg of the trip.

For example I am going NYC::PEK - BKK

how do I specify :: / f bc=b on the part NYC-PEK leg?

Say if you'd like to specify a B fare class on the NYC-PEK segment.
Use the multi-city search option.
and type in NYC:: /f bc=b in the origin of the first segment
and type in PEK in the destination of the first segment

and leave PEK-BKK to the second segment and so forth

Only works for Specific Dates searches, not Month-long, so utility somewhat limited. I don't know how to accomplish this for a Month-long.

It would be great if you could define fare bucket on a Transatlantic /pacific segment and then take whatever segment is cheapest for the rest of the connections.

fare restrictions prevent this many times. For example if you book your over water in W (and W is the lowest available) then it many times won't book anything lower than W for your domestic segments. It has to be in the fare restrictions somewhere and not really worth time to read and figure it out. A less time consuming way of doing it is calling and constructing it with an agent who will know if it is possible for your city routings.